//www.getgobooth.com/ 必威体育下载 daily 15 2024-08-20 10:33:37 apsoffice@iphy.ac.cn apsoffice@iphy.ac.cn 2024-08-20 10:33:37 zh Copyright ©Acta Physica Sinica All Rights Reserved. 京ICP备05002789号-1 Address: PostCode：100190 Phone: 010-82649829，82649241,82649863 Email: apsoffice@iphy.ac.cn Copyright ©Acta Physica Sinica All Rights Reserved apsoffice@iphy.ac.cn 1000-3290 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1719 Author(s): ZHAO LIU <br/><p>The Sato theory of KP and KdV hierarchies is generalized to the case of matrix lax operators , leading to new hierarchies of integrable nonlinear partial differential equations, which are called extended KP and KdV hierarchies in the context. It can be seen from the construction Process, the solutions of these new hierarchies can be expressed by the so-called quasi-wrongsky determinartes, and these quasi-wrongsky determinantes are just those obtained in ou recent study of 2-extended Toda field theories.</p> <br/>Acta Physica Sinica. 1993 42(11): 1719-1730. Published 2005-07-10 Author(s): ZHAO LIU <br/><p>The Sato theory of KP and KdV hierarchies is generalized to the case of matrix lax operators , leading to new hierarchies of integrable nonlinear partial differential equations, which are called extended KP and KdV hierarchies in the context. It can be seen from the construction Process, the solutions of these new hierarchies can be expressed by the so-called quasi-wrongsky determinartes, and these quasi-wrongsky determinantes are just those obtained in ou recent study of 2-extended Toda field theories.</p> <br/>Acta Physica Sinica. 1993 42(11): 1719-1730. Published 2005-07-10 QUASI-WRONGSKY DETERMINANTES AND EXTENDED KP AND KdV HIERARCHIES ZHAO LIU 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(11): 1719-1730. article doi:10.7498/aps.42.1719 10.7498/aps.42.1719 Acta Physica Sinica 42 11 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1719 1719-1730 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1731 Author(s): MA WEN-XIU, ZHOU DE-TANG <br/><p>The deformation theory, in Ref [5],of travelling wave solutions to a generalized KdV equation is modified. The necessary and sufficient condition for a relevant algebraic equation to possess nonzero real root is presented and thus an error of analyses in Ref. [5] is pointe-dont. Finally an explicit formula of the solitary wave solutions generated by deformetion theory is obtained directly from the generalized KdV equation itselp.</p> <br/>Acta Physica Sinica. 1993 42(11): 1731-1734. Published 2005-07-10 Author(s): MA WEN-XIU, ZHOU DE-TANG <br/><p>The deformation theory, in Ref [5],of travelling wave solutions to a generalized KdV equation is modified. The necessary and sufficient condition for a relevant algebraic equation to possess nonzero real root is presented and thus an error of analyses in Ref. [5] is pointe-dont. Finally an explicit formula of the solitary wave solutions generated by deformetion theory is obtained directly from the generalized KdV equation itselp.</p> <br/>Acta Physica Sinica. 1993 42(11): 1731-1734. Published 2005-07-10 ON SOLITARY WARE SOLUTIONS TO A GENERALIZED KdV EQNATION MA WEN-XIU, ZHOU DE-TANG 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(11): 1731-1734. article doi:10.7498/aps.42.1731 10.7498/aps.42.1731 Acta Physica Sinica 42 11 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1731 1731-1734 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1735 Author(s): JIANG YI-MIN <br/><p>This article presents numerical results on the distribution ol nearest-neighbor level spac-ings Shd the avoided crossing behavior of quanitum energy curves for a cpupled spin model coming from nuclear many body theory. When the system undergoes a transition from classical regular to chaos and then to regular as varying a model parameter,the Brody parameter of the level spacing distribution p(s) could be fairly associated to the fraction of classical chaotic tra-jectories in phase space.;ln the regime of parameters with large chaotic regions, a number of overlapping avoided crossings were discovered from the results of computations, Which lead the energy curves looked irregular These results are considered as quantum manifestation or ‘scars' pf classidal chaos in spectrum.</p> <br/>Acta Physica Sinica. 1993 42(11): 1735-1740. Published 2005-07-10 Author(s): JIANG YI-MIN <br/><p>This article presents numerical results on the distribution ol nearest-neighbor level spac-ings Shd the avoided crossing behavior of quanitum energy curves for a cpupled spin model coming from nuclear many body theory. When the system undergoes a transition from classical regular to chaos and then to regular as varying a model parameter,the Brody parameter of the level spacing distribution p(s) could be fairly associated to the fraction of classical chaotic tra-jectories in phase space.;ln the regime of parameters with large chaotic regions, a number of overlapping avoided crossings were discovered from the results of computations, Which lead the energy curves looked irregular These results are considered as quantum manifestation or ‘scars' pf classidal chaos in spectrum.</p> <br/>Acta Physica Sinica. 1993 42(11): 1735-1740. Published 2005-07-10 SPECTRAL PROPERTIES OF A SYSTEM IN TRANSITION TOCLASSICAL CHAOS——NUMERICAL RESULTS ON COUPLED SPIN MODEL JIANG YI-MIN 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(11): 1735-1740. article doi:10.7498/aps.42.1735 10.7498/aps.42.1735 Acta Physica Sinica 42 11 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1735 1735-1740 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1741 Author(s): JI DA-REN, ZHANG JIAN-BO <br/><p>In order to reduce the critical slowing down in Monte Carlo simulations, a numerical study for the Ising model on 3-D random lattice using Swendsen-Wang algorithm is performed. The critical point obtained is βc=0. 075±0. 001. Moreover, to analyse the dynamical property of Swendsen-Wang method, the dynamical critical exponent z is estimated. The result is z =0. 74 ±0. 03. This indicates that the Swendsen-Wang method can greatly reduce the critical slowing down for the Ising model on 3-D random lattice.</p> <br/>Acta Physica Sinica. 1993 42(11): 1741-1746. Published 2005-07-10 Author(s): JI DA-REN, ZHANG JIAN-BO <br/><p>In order to reduce the critical slowing down in Monte Carlo simulations, a numerical study for the Ising model on 3-D random lattice using Swendsen-Wang algorithm is performed. The critical point obtained is βc=0. 075±0. 001. Moreover, to analyse the dynamical property of Swendsen-Wang method, the dynamical critical exponent z is estimated. The result is z =0. 74 ±0. 03. This indicates that the Swendsen-Wang method can greatly reduce the critical slowing down for the Ising model on 3-D random lattice.</p> <br/>Acta Physica Sinica. 1993 42(11): 1741-1746. Published 2005-07-10 MONTE CARLO SIMULATIONS OF THE ISING MODEL ON THREE-DIMENSIONAL RANDOM LATTICE USING THE CLUSTER ALGORITHM JI DA-REN, ZHANG JIAN-BO 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(11): 1741-1746. article doi:10.7498/aps.42.1741 10.7498/aps.42.1741 Acta Physica Sinica 42 11 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1741 1741-1746 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1747 Author(s): CAO FU-GUANG, YANG SHAN-DE <br/><p>The Hill-Wheeler formula is applied to deriving the equation of state for finite nuclei with the Gogny effective interaction in the framework of Hartree-Fock theory. The reasonable zero-temperature saturation properties is obtainde, and the critical temperature for liquid-gas phase transition of finite nuclei is found to be around 12 MeV. In addition it is found that the phenomenological formula for surface energy used widely is not available when the density is far away from the normal nuclear density, and a new formula is suggested.</p> <br/>Acta Physica Sinica. 1993 42(11): 1747-1755. Published 2005-07-10 Author(s): CAO FU-GUANG, YANG SHAN-DE <br/><p>The Hill-Wheeler formula is applied to deriving the equation of state for finite nuclei with the Gogny effective interaction in the framework of Hartree-Fock theory. The reasonable zero-temperature saturation properties is obtainde, and the critical temperature for liquid-gas phase transition of finite nuclei is found to be around 12 MeV. In addition it is found that the phenomenological formula for surface energy used widely is not available when the density is far away from the normal nuclear density, and a new formula is suggested.</p> <br/>Acta Physica Sinica. 1993 42(11): 1747-1755. Published 2005-07-10 ON THE SATURATION PROPERTIES AND THE LIQUID-GAS PHASE TRANSITION OF FINITE NUCLEAR MATTER WITH GOGNY INTERACTION CAO FU-GUANG, YANG SHAN-DE 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(11): 1747-1755. article doi:10.7498/aps.42.1747 10.7498/aps.42.1747 Acta Physica Sinica 42 11 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1747 1747-1755 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1756 Author(s): LIU YE-HOU, FU SHI-YOU, ZHANG PENG-XIANG, LI XIU-YING, WANG YUN-SHAN <br/><p>A new method to study chemical adsorption kinetics by means of surface enhanced raman scattering is proposed. The theoretical model is proposed and experimental results given out. The adsorption of CV and PABA molecules on the surfaces of silver mirrors and silver colloids is studied. It is found that the adsorption of CV on silver surfaces is homogeneous, and the adsorption of PABA is heterogeneous. The differences of silver surfaces only influence the adsorption rate constant Ka, not changing the heterogeneity character of adsorption and desorp-tion rate constant (Kd=0). Finally, the significance of heterogeneity paramter is discussed.</p> <br/>Acta Physica Sinica. 1993 42(11): 1756-1761. Published 2005-07-10 Author(s): LIU YE-HOU, FU SHI-YOU, ZHANG PENG-XIANG, LI XIU-YING, WANG YUN-SHAN <br/><p>A new method to study chemical adsorption kinetics by means of surface enhanced raman scattering is proposed. The theoretical model is proposed and experimental results given out. The adsorption of CV and PABA molecules on the surfaces of silver mirrors and silver colloids is studied. It is found that the adsorption of CV on silver surfaces is homogeneous, and the adsorption of PABA is heterogeneous. The differences of silver surfaces only influence the adsorption rate constant Ka, not changing the heterogeneity character of adsorption and desorp-tion rate constant (Kd=0). Finally, the significance of heterogeneity paramter is discussed.</p> <br/>Acta Physica Sinica. 1993 42(11): 1756-1761. Published 2005-07-10 A NEW METHOD TO STUDY THE HETEROGENEOUS ADSORPTION ON THE INTERFACES ON SURFACE ENHANCED RAMAN SCATTERING LIU YE-HOU, FU SHI-YOU, ZHANG PENG-XIANG, LI XIU-YING, WANG YUN-SHAN 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(11): 1756-1761. article doi:10.7498/aps.42.1756 10.7498/aps.42.1756 Acta Physica Sinica 42 11 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1756 1756-1761 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1762 Author(s): LIU LIANG, CHEN HONG-XIN, WANG YU-ZHU <br/><p>In this paper, we calculate the radiation force on a two-level atom, whose levels are modulated by two far off resonance travelling wave fields, interacting with a near resonance travelling wave field. The results show that with appropriate conditions, the force can be much larger than spontaneous radiation force and then can be used in laser cooling with high efficiency.</p> <br/>Acta Physica Sinica. 1993 42(11): 1762-1765. Published 2005-07-10 Author(s): LIU LIANG, CHEN HONG-XIN, WANG YU-ZHU <br/><p>In this paper, we calculate the radiation force on a two-level atom, whose levels are modulated by two far off resonance travelling wave fields, interacting with a near resonance travelling wave field. The results show that with appropriate conditions, the force can be much larger than spontaneous radiation force and then can be used in laser cooling with high efficiency.</p> <br/>Acta Physica Sinica. 1993 42(11): 1762-1765. Published 2005-07-10 LASER COOLING OF AN ATOMIC BEAM WITH HIGH EFFICIENCY LIU LIANG, CHEN HONG-XIN, WANG YU-ZHU 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(11): 1762-1765. article doi:10.7498/aps.42.1762 10.7498/aps.42.1762 Acta Physica Sinica 42 11 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1762 1762-1765 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1766 Author(s): SHEN YI-FAN, LI WAN-XING <br/><p>Cesium molecules are pumped by a CW dye laser. Some of the excited molecules then pre-dissociate or collisionally transfer excitation to produce excited atoms at the 5D and 6P levels. The cross sections (in units of 10-14cm2) for the excitation transfer process Cs(6P)+Cs(5D) →Cs(7DJ)+Cs(6S)for J being 5/2 and 3/2 are 5. 4 ± 50% and 4. 9 ± 50%, respectively. The cross sections (in units of 10-14cm2) for the excitation transfer out of the 7D doublet [i. e. , Cs(7DJ)+Cs(6S) →states other than Cs(7D)] for J being 5/2 and 3/2 are 1. 6 ±50% and 0. 34±50%, respectively. To obtain these cross sections, the intensities of 7D and 5D fluorescence emissions and the 6P atom density are measured by using the absorption equivalent width technique. The results are discussed in eomparison with those of other experiments.</p> <br/>Acta Physica Sinica. 1993 42(11): 1766-1773. Published 2005-07-10 Author(s): SHEN YI-FAN, LI WAN-XING <br/><p>Cesium molecules are pumped by a CW dye laser. Some of the excited molecules then pre-dissociate or collisionally transfer excitation to produce excited atoms at the 5D and 6P levels. The cross sections (in units of 10-14cm2) for the excitation transfer process Cs(6P)+Cs(5D) →Cs(7DJ)+Cs(6S)for J being 5/2 and 3/2 are 5. 4 ± 50% and 4. 9 ± 50%, respectively. The cross sections (in units of 10-14cm2) for the excitation transfer out of the 7D doublet [i. e. , Cs(7DJ)+Cs(6S) →states other than Cs(7D)] for J being 5/2 and 3/2 are 1. 6 ±50% and 0. 34±50%, respectively. To obtain these cross sections, the intensities of 7D and 5D fluorescence emissions and the 6P atom density are measured by using the absorption equivalent width technique. The results are discussed in eomparison with those of other experiments.</p> <br/>Acta Physica Sinica. 1993 42(11): 1766-1773. Published 2005-07-10 ENERGY TRANSFER IN COLLISIONS BETWEEN TWO EXCITED CESIUM ATOMS SHEN YI-FAN, LI WAN-XING 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(11): 1766-1773. article doi:10.7498/aps.42.1766 10.7498/aps.42.1766 Acta Physica Sinica 42 11 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1766 1766-1773 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1774 Author(s): DENG JIN-QUAN, AN SHAO-FENG, LIU JIN-TING, TAN YONG-FANG <br/><p>This paper describes, two kinds of high-light-intensity bulb, one is a mushroom-shaped bulb and the other is a round flat bulb, replacing the usual spherical bulb tor optical pumping. We light these two bulbs with a high r. f. source and carry out the experiments of pumping 87Rb maser with these lamps. The light intensities of the two bulbs are respectixely 2. 3 and 2 times as that of the spherical bulb. And the largest output powers of the maser pamped with these two lamps are-60 and -62 dBm at the optimum resonance cell temperature of 67 and 66℃ respectively. The improvement of short-term frequeney stability of the round flat bulb pumped 87Rb maser is consistent with the increment of the output power of the maser.</p> <br/>Acta Physica Sinica. 1993 42(11): 1774-1778. Published 2005-07-10 Author(s): DENG JIN-QUAN, AN SHAO-FENG, LIU JIN-TING, TAN YONG-FANG <br/><p>This paper describes, two kinds of high-light-intensity bulb, one is a mushroom-shaped bulb and the other is a round flat bulb, replacing the usual spherical bulb tor optical pumping. We light these two bulbs with a high r. f. source and carry out the experiments of pumping 87Rb maser with these lamps. The light intensities of the two bulbs are respectixely 2. 3 and 2 times as that of the spherical bulb. And the largest output powers of the maser pamped with these two lamps are-60 and -62 dBm at the optimum resonance cell temperature of 67 and 66℃ respectively. The improvement of short-term frequeney stability of the round flat bulb pumped 87Rb maser is consistent with the increment of the output power of the maser.</p> <br/>Acta Physica Sinica. 1993 42(11): 1774-1778. Published 2005-07-10 HIGH-LIGHT-INTENSITY SPECTRICAL LAMP PUMPED 87Rb MASER DENG JIN-QUAN, AN SHAO-FENG, LIU JIN-TING, TAN YONG-FANG 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(11): 1774-1778. article doi:10.7498/aps.42.1774 10.7498/aps.42.1774 Acta Physica Sinica 42 11 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1774 1774-1778 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1779 Author(s): CHENG CHENG, SUN WEI <br/><p>The radial distribution and time varidtion of gas temperature and atom density in a CuBr laser are obtained by using a consistent model and the experimental data of plasma electron temperature and density in the pulse period. The central tas temperature, the fluctuation of which is 300—500 K following the time change, is 1400—800 K. The gas atom density exhibits a concave profile in radial direction.</p> <br/>Acta Physica Sinica. 1993 42(11): 1779-1785. Published 2005-07-10 Author(s): CHENG CHENG, SUN WEI <br/><p>The radial distribution and time varidtion of gas temperature and atom density in a CuBr laser are obtained by using a consistent model and the experimental data of plasma electron temperature and density in the pulse period. The central tas temperature, the fluctuation of which is 300—500 K following the time change, is 1400—800 K. The gas atom density exhibits a concave profile in radial direction.</p> <br/>Acta Physica Sinica. 1993 42(11): 1779-1785. Published 2005-07-10 RADIAL DISTRIBUTION AND TIME VARIATION OF GAS TEMPERATURE IN CuBr LASERS CHENG CHENG, SUN WEI 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(11): 1779-1785. article doi:10.7498/aps.42.1779 10.7498/aps.42.1779 Acta Physica Sinica 42 11 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1779 1779-1785 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1786 Author(s): XIA HAI-RUI, QIN ZI-KAI, LI LI-XIA, ZOU ZHI-QIANG <br/><p>The Raman spectra of two-component piezoelectric single crystal alumimium gallium phosphate A11-xGaxPO4(x=0.12) (AGP) have been obtained. and it has beeh shown that the red shifted spectrum lines exceed blue shifted ones in number and the TO/LO splittings for E modes decreases obviously in comparison with that of α-AlPO4. These features are interpreted in terms of lattice dynamics.</p> <br/>Acta Physica Sinica. 1993 42(11): 1786-1792. Published 2005-07-10 Author(s): XIA HAI-RUI, QIN ZI-KAI, LI LI-XIA, ZOU ZHI-QIANG <br/><p>The Raman spectra of two-component piezoelectric single crystal alumimium gallium phosphate A11-xGaxPO4(x=0.12) (AGP) have been obtained. and it has beeh shown that the red shifted spectrum lines exceed blue shifted ones in number and the TO/LO splittings for E modes decreases obviously in comparison with that of α-AlPO4. These features are interpreted in terms of lattice dynamics.</p> <br/>Acta Physica Sinica. 1993 42(11): 1786-1792. Published 2005-07-10 STUDY OF RAMAN SPECTRA FOR CRYSTALS WITH SPACE GROUP P3121(D34)( I )——RAMAN SPECTRA OF TWO-COMPONENT PIEZOELECTRIC SINGLE CRYSTAL Al1-xGaxPO4 XIA HAI-RUI, QIN ZI-KAI, LI LI-XIA, ZOU ZHI-QIANG 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(11): 1786-1792. article doi:10.7498/aps.42.1786 10.7498/aps.42.1786 Acta Physica Sinica 42 11 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1786 1786-1792 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1793 Author(s): XIA HAI-RUI, LI LI-XIA, CHEN CHEN, QIN ZI-KAI <br/><p>Based on the symmetry of the space group P3121(D34), we consider that there are six molecules per primitive cell in a-quartz, and the constants of the primitive cell should be c = 1. 0788 nm and a = 0. 4904nm This point of view has been confirmed by our experiment.</p> <br/>Acta Physica Sinica. 1993 42(11): 1793-1799. Published 2005-07-10 Author(s): XIA HAI-RUI, LI LI-XIA, CHEN CHEN, QIN ZI-KAI <br/><p>Based on the symmetry of the space group P3121(D34), we consider that there are six molecules per primitive cell in a-quartz, and the constants of the primitive cell should be c = 1. 0788 nm and a = 0. 4904nm This point of view has been confirmed by our experiment.</p> <br/>Acta Physica Sinica. 1993 42(11): 1793-1799. Published 2005-07-10 STUDY OF RAMAN SPECTRA FOR CRYSTALS WITH SPACE GROUP P3121(D34) ( Ⅱ )——THE RAMAN SPECTRA OF a-QUARTZ XIA HAI-RUI, LI LI-XIA, CHEN CHEN, QIN ZI-KAI 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(11): 1793-1799. article doi:10.7498/aps.42.1793 10.7498/aps.42.1793 Acta Physica Sinica 42 11 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1793 1793-1799 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1800 Author(s): LIU PING, ZHOU ZU-YAO, LIN CHENG-LU, ZOU SHI-CHANG, LI BING-ZONG, SUN ZHEN <br/><p>The bimetallic layers of Co/Ti were deposited by ion beam sputtering on silicon implanted with arsenic. The sample of Co/Ti/Si was treated by a multi-step annealing under nitrogen ambient. The behaviuor of arsenic during the reaction of ternary Co/Ti/Si system was studied by Rutherford backscattering sepctrometry (RBS). The results show that a multi-layer structure of TiN(O)/Co-Ti-Si/CoSi2/Si was formed by the reaction and a number of arsenic atoms were segregated from silicon substrate to the interlayer of Co-Ti-Si compound.</p> <br/>Acta Physica Sinica. 1993 42(11): 1800-1805. Published 2005-07-10 Author(s): LIU PING, ZHOU ZU-YAO, LIN CHENG-LU, ZOU SHI-CHANG, LI BING-ZONG, SUN ZHEN <br/><p>The bimetallic layers of Co/Ti were deposited by ion beam sputtering on silicon implanted with arsenic. The sample of Co/Ti/Si was treated by a multi-step annealing under nitrogen ambient. The behaviuor of arsenic during the reaction of ternary Co/Ti/Si system was studied by Rutherford backscattering sepctrometry (RBS). The results show that a multi-layer structure of TiN(O)/Co-Ti-Si/CoSi2/Si was formed by the reaction and a number of arsenic atoms were segregated from silicon substrate to the interlayer of Co-Ti-Si compound.</p> <br/>Acta Physica Sinica. 1993 42(11): 1800-1805. Published 2005-07-10 SEGREGATION OF ARSENIC DURING THE SOLID STATE REACTION OF TERNARY Co/Ti/Si SYSTEM LIU PING, ZHOU ZU-YAO, LIN CHENG-LU, ZOU SHI-CHANG, LI BING-ZONG, SUN ZHEN 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(11): 1800-1805. article doi:10.7498/aps.42.1800 10.7498/aps.42.1800 Acta Physica Sinica 42 11 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1800 1800-1805 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1806 Author(s): HAN FEI, MA BEN-KUN <br/><p>The growth behavious of interfaces in order parametes-conservation system with spatial correlation are analysed by using renormalization-group method. The scaling exponentχ and dynamic exponent z are obtained as functions of spatial dimension d and roughening exponent ρ. The result shows that the conservation condition makes the fluctuation Propagation decay, and spatial correlations make the interface roughen. The results are also compared with that of E. Medina et al. and T. Sun et al.</p> <br/>Acta Physica Sinica. 1993 42(11): 1806-1811. Published 2005-07-10 Author(s): HAN FEI, MA BEN-KUN <br/><p>The growth behavious of interfaces in order parametes-conservation system with spatial correlation are analysed by using renormalization-group method. The scaling exponentχ and dynamic exponent z are obtained as functions of spatial dimension d and roughening exponent ρ. The result shows that the conservation condition makes the fluctuation Propagation decay, and spatial correlations make the interface roughen. The results are also compared with that of E. Medina et al. and T. Sun et al.</p> <br/>Acta Physica Sinica. 1993 42(11): 1806-1811. Published 2005-07-10 GROWTH OF INTERFACE WITH A LAW AND SPATIAL CORRELATIONS IN A CONSERVATIONAL SYSTEM HAN FEI, MA BEN-KUN 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(11): 1806-1811. article doi:10.7498/aps.42.1806 10.7498/aps.42.1806 Acta Physica Sinica 42 11 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1806 1806-1811 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1812 Author(s): HAN FEI, MA BEN-KUN <br/><p>The dynamics of a growing interface with an external field is investigated. The nontrivial fixed point is found and the exponents are calculated. The result shows that the external field tends to smoothen the interface and does not break the Galilean invariance.</p> <br/>Acta Physica Sinica. 1993 42(11): 1812-1816. Published 2005-07-10 Author(s): HAN FEI, MA BEN-KUN <br/><p>The dynamics of a growing interface with an external field is investigated. The nontrivial fixed point is found and the exponents are calculated. The result shows that the external field tends to smoothen the interface and does not break the Galilean invariance.</p> <br/>Acta Physica Sinica. 1993 42(11): 1812-1816. Published 2005-07-10 GROWTH OF INTERFACE WITH AN EXTERNAL FIELD HAN FEI, MA BEN-KUN 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(11): 1812-1816. article doi:10.7498/aps.42.1812 10.7498/aps.42.1812 Acta Physica Sinica 42 11 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1812 1812-1816 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1815 Author(s): XIE JIAN-JUN, ZHANG TAO, LU WEN-CHANG <br/><p>The adsorption properties of hydrogen on the supported-metal surfaces are investigated using the Green function method within the framework of tight-binding approximation. The adsorption energy ΔE and the adatom state energy Ead, for hydrogen adsorption on Pt/ZnO, Cu/ZnO and Ni/ZnO composite systems are calculated by employing the self-consistent An-derson-Newns adsorption theory. The effects of the metal-support interaction on the adsorption properties of hydrogen on supported-metal surfaces are discussed. It is found that the stronger the metal-support interaction is, the less the adsorption energy and charge transfer for H on Pt(Cu,Ni)/ZnO become. The metal-support interaction impedes hydrogen adsorption on the metal surfaces. This effect becomes weak as the metal film grows thick.</p> <br/>Acta Physica Sinica. 1993 42(11): 1815-1821. Published 2005-07-10 Author(s): XIE JIAN-JUN, ZHANG TAO, LU WEN-CHANG <br/><p>The adsorption properties of hydrogen on the supported-metal surfaces are investigated using the Green function method within the framework of tight-binding approximation. The adsorption energy ΔE and the adatom state energy Ead, for hydrogen adsorption on Pt/ZnO, Cu/ZnO and Ni/ZnO composite systems are calculated by employing the self-consistent An-derson-Newns adsorption theory. The effects of the metal-support interaction on the adsorption properties of hydrogen on supported-metal surfaces are discussed. It is found that the stronger the metal-support interaction is, the less the adsorption energy and charge transfer for H on Pt(Cu,Ni)/ZnO become. The metal-support interaction impedes hydrogen adsorption on the metal surfaces. This effect becomes weak as the metal film grows thick.</p> <br/>Acta Physica Sinica. 1993 42(11): 1815-1821. Published 2005-07-10 STUDY ON THE ADSORPTION OF HYDROGEN ON SUPPORTED-METAL SURFACES XIE JIAN-JUN, ZHANG TAO, LU WEN-CHANG 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(11): 1815-1821. article doi:10.7498/aps.42.1815 10.7498/aps.42.1815 Acta Physica Sinica 42 11 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1815 1815-1821 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1822 Author(s): YU ZHI-GANG, HUANG QING-FENG, SUN XIN <br/><p>On the basis of multi-phonon transition theory, the origin of the fast component(100 fs) and the slow component (ns) in photo-excitation dynamics is explained and their evolution time is calculated. From these results, it is seen that the fast component is due to the formation of neutral bipolaron from free electron-hole pair, and the slow one is due to the non-radiative decay of bipolaron. The equations motion of the lattice are also integrated in real time to simulate the formation of bipolaron.</p> <br/>Acta Physica Sinica. 1993 42(11): 1822-1829. Published 2005-07-10 Author(s): YU ZHI-GANG, HUANG QING-FENG, SUN XIN <br/><p>On the basis of multi-phonon transition theory, the origin of the fast component(100 fs) and the slow component (ns) in photo-excitation dynamics is explained and their evolution time is calculated. From these results, it is seen that the fast component is due to the formation of neutral bipolaron from free electron-hole pair, and the slow one is due to the non-radiative decay of bipolaron. The equations motion of the lattice are also integrated in real time to simulate the formation of bipolaron.</p> <br/>Acta Physica Sinica. 1993 42(11): 1822-1829. Published 2005-07-10 PHOTO-INDUCED ULTRATAST PROCESS OF RELAXATION IN POLYMER YU ZHI-GANG, HUANG QING-FENG, SUN XIN 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(11): 1822-1829. article doi:10.7498/aps.42.1822 10.7498/aps.42.1822 Acta Physica Sinica 42 11 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1822 1822-1829 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1830 Author(s): QIAO HAO, XU ZHI-ZHONG, ZHANG KAI-MING <br/><p>Deep levels of vacancy and substitutional impurity atoms in strained Si or Ge grown on alloy substrates are investigated. The band structures of strained bulk are calculated by using the empirical tight-binding method. The method of Green's function has been used to calculate the defect levels. The results show that the triplydegenerate p-like T2 level of defect in bulk Si or Ge splits into two levels due to the strain. The value of splitting increases with strain increasing. Owing to the strain,the valence band maximum of Si or Ge shifts upward, hence some deep levels in the bulk might transform to resonant ones.</p> <br/>Acta Physica Sinica. 1993 42(11): 1830-1835. Published 2005-07-10 Author(s): QIAO HAO, XU ZHI-ZHONG, ZHANG KAI-MING <br/><p>Deep levels of vacancy and substitutional impurity atoms in strained Si or Ge grown on alloy substrates are investigated. The band structures of strained bulk are calculated by using the empirical tight-binding method. The method of Green's function has been used to calculate the defect levels. The results show that the triplydegenerate p-like T2 level of defect in bulk Si or Ge splits into two levels due to the strain. The value of splitting increases with strain increasing. Owing to the strain,the valence band maximum of Si or Ge shifts upward, hence some deep levels in the bulk might transform to resonant ones.</p> <br/>Acta Physica Sinica. 1993 42(11): 1830-1835. Published 2005-07-10 DEEP LEVELS IN STRAINED Si AND Ge QIAO HAO, XU ZHI-ZHONG, ZHANG KAI-MING 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(11): 1830-1835. article doi:10.7498/aps.42.1830 10.7498/aps.42.1830 Acta Physica Sinica 42 11 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1830 1830-1835 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1836 Author(s): WANG XIAO-GANG <br/><p>The discrete variational method and embedded-cluster model within the framework of the two-component density functional theory and firstprinciple method are used to calculate the positron states of monovacancy in aluminum. The effect of the crystal field in which the cluster is embedded, magnitude of the cluster and frozen-core density approximation on the distribution of positron density and the positron annihilation characteristics are analyzed. The influence of the fully self-consistent scheme and the conventional scheme on the calculation of positron states in solids is discussed.</p> <br/>Acta Physica Sinica. 1993 42(11): 1836-1844. Published 2005-07-10 Author(s): WANG XIAO-GANG <br/><p>The discrete variational method and embedded-cluster model within the framework of the two-component density functional theory and firstprinciple method are used to calculate the positron states of monovacancy in aluminum. The effect of the crystal field in which the cluster is embedded, magnitude of the cluster and frozen-core density approximation on the distribution of positron density and the positron annihilation characteristics are analyzed. The influence of the fully self-consistent scheme and the conventional scheme on the calculation of positron states in solids is discussed.</p> <br/>Acta Physica Sinica. 1993 42(11): 1836-1844. Published 2005-07-10 FULLY SELF-CONSISTENT CALCULATION OF POSITRON STATES OF MONOVACANCY IN ALUMINUM WANG XIAO-GANG 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(11): 1836-1844. article doi:10.7498/aps.42.1836 10.7498/aps.42.1836 Acta Physica Sinica 42 11 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1836 1836-1844 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1845 Author(s): YING HE-PING, JI DA-REN <br/><p>We develop a new type of cluster algorithm that strongly reduces the critical slowing down and the frustration effect in Monte Carlo simulations of the 2D quantum antiferro-magnet Heisenberg model (AFMH). The results obtained show that the method can be applied efficiently for the study of the 2D AFMH at lower temperatures.</p> <br/>Acta Physica Sinica. 1993 42(11): 1845-1850. Published 2005-07-10 Author(s): YING HE-PING, JI DA-REN <br/><p>We develop a new type of cluster algorithm that strongly reduces the critical slowing down and the frustration effect in Monte Carlo simulations of the 2D quantum antiferro-magnet Heisenberg model (AFMH). The results obtained show that the method can be applied efficiently for the study of the 2D AFMH at lower temperatures.</p> <br/>Acta Physica Sinica. 1993 42(11): 1845-1850. Published 2005-07-10 AN EFFICIENT CLUSTER ALGORITHM AND THE STUDY FOR THE TWO-DIMENSIONAL QUANTUM HEISENBERG ANTIFERROMAGNET YING HE-PING, JI DA-REN 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(11): 1845-1850. article doi:10.7498/aps.42.1845 10.7498/aps.42.1845 Acta Physica Sinica 42 11 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1845 1845-1850 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1851 Author(s): GAO XIAO-YUN, LI JIN, HOU DENG-LU, YANG FU-MING, ZHONG XIA-PING, LUO HE-LIE <br/><p>This paper reports the study on the magnetic vicosity for chain-spherical Fe UFP prepared by laser pyrolysis. Fluctuation field,anisotropy and active volume of the particles were measured and calculated. The results show that the reverse magnetizing unit is made up of n chain spheres,and equivalent to a single-domain with uniaxial particle. Variation tendency of active volume of the particles is similiar to the acicular γ-type ferric oxide particles.</p> <br/>Acta Physica Sinica. 1993 42(11): 1851-1855. Published 2005-07-10 Author(s): GAO XIAO-YUN, LI JIN, HOU DENG-LU, YANG FU-MING, ZHONG XIA-PING, LUO HE-LIE <br/><p>This paper reports the study on the magnetic vicosity for chain-spherical Fe UFP prepared by laser pyrolysis. Fluctuation field,anisotropy and active volume of the particles were measured and calculated. The results show that the reverse magnetizing unit is made up of n chain spheres,and equivalent to a single-domain with uniaxial particle. Variation tendency of active volume of the particles is similiar to the acicular γ-type ferric oxide particles.</p> <br/>Acta Physica Sinica. 1993 42(11): 1851-1855. Published 2005-07-10 MAGNETIC VISCOSITY OF CHAIN-SPHERICAL Fe ULTRA-FINE PARTICLES GAO XIAO-YUN, LI JIN, HOU DENG-LU, YANG FU-MING, ZHONG XIA-PING, LUO HE-LIE 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(11): 1851-1855. article doi:10.7498/aps.42.1851 10.7498/aps.42.1851 Acta Physica Sinica 42 11 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1851 1851-1855 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1856 Author(s): PANG XIAO-FENG <br/><p>In this paper,the properties of the M?ssbauer effect resulting from supersonic solitons generated by the localized fluectuation and the deformation of structure in quasi-one-dimensional organic molecular crystal at temperature T≠0 and with non-linear vibration of molecular chains have been studied in the case of γ-photons emission from the γ-active nucleus. The expression for the time-dependentr γ radiation M?ssbauer transition probability is presented, and some interesting</p> <br/>Acta Physica Sinica. 1993 42(11): 1856-1867. Published 2005-07-10 Author(s): PANG XIAO-FENG <br/><p>In this paper,the properties of the M?ssbauer effect resulting from supersonic solitons generated by the localized fluectuation and the deformation of structure in quasi-one-dimensional organic molecular crystal at temperature T≠0 and with non-linear vibration of molecular chains have been studied in the case of γ-photons emission from the γ-active nucleus. The expression for the time-dependentr γ radiation M?ssbauer transition probability is presented, and some interesting</p> <br/>Acta Physica Sinica. 1993 42(11): 1856-1867. Published 2005-07-10 M?SSBAUER EFFECT RESULTING FROM SUPERSONIC SOLITONS IN QUASI-ONE-DIMENSIONAL ORGANIC MOLECULAR CRYSTALS PANG XIAO-FENG 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(11): 1856-1867. article doi:10.7498/aps.42.1856 10.7498/aps.42.1856 Acta Physica Sinica 42 11 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1856 1856-1867 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1868 Author(s): LU WEI, LIU PU-LIN, SHEN XUE-CHU, M. VON ORTENBERG, W. DOBROWOLSKI <br/><p>The transmission spectra of p-PbTe have been measured by the strip-line technique with different far infrared laser wavelengths at different anhgles of the direction of maqnetic field relative to the crystal axis at low temperature of 1.5 k. A strong influence of mode coupling on strip-line transmission spectra has been observed and analyzed. The final results extracted from experimental spectra by numerical simulation are in good agreement with the six band k·p model calculation.</p> <br/>Acta Physica Sinica. 1993 42(11): 1868-1873. Published 2005-07-10 Author(s): LU WEI, LIU PU-LIN, SHEN XUE-CHU, M. VON ORTENBERG, W. DOBROWOLSKI <br/><p>The transmission spectra of p-PbTe have been measured by the strip-line technique with different far infrared laser wavelengths at different anhgles of the direction of maqnetic field relative to the crystal axis at low temperature of 1.5 k. A strong influence of mode coupling on strip-line transmission spectra has been observed and analyzed. The final results extracted from experimental spectra by numerical simulation are in good agreement with the six band k·p model calculation.</p> <br/>Acta Physica Sinica. 1993 42(11): 1868-1873. Published 2005-07-10 STUDY ON THE STRIP-LINE TRANSMISSION SPECTRA OF p-PbTe LU WEI, LIU PU-LIN, SHEN XUE-CHU, M. VON ORTENBERG, W. DOBROWOLSKI 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(11): 1868-1873. article doi:10.7498/aps.42.1868 10.7498/aps.42.1868 Acta Physica Sinica 42 11 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1868 1868-1873 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1874 Author(s): ZHANG XIAO-RONG, BAO XI-MAO, YAN FENG, GAN CHANG-MING, CAI ZHI-GANG, HUANG XU-GUANG, ZHOU SHI-YING <br/><p>Luminescence spectra, picosecond decay and Fourier transform infrared spectroscopy measurements show that there are two independent emission mechanisms in the spontaneously oxidized porous Si. One is determined by the quantum confinement effect , the other is produced by the oxidation.</p> <br/>Acta Physica Sinica. 1993 42(11): 1874-1878. Published 2005-07-10 Author(s): ZHANG XIAO-RONG, BAO XI-MAO, YAN FENG, GAN CHANG-MING, CAI ZHI-GANG, HUANG XU-GUANG, ZHOU SHI-YING <br/><p>Luminescence spectra, picosecond decay and Fourier transform infrared spectroscopy measurements show that there are two independent emission mechanisms in the spontaneously oxidized porous Si. One is determined by the quantum confinement effect , the other is produced by the oxidation.</p> <br/>Acta Physica Sinica. 1993 42(11): 1874-1878. Published 2005-07-10 PICOSECOND LUMINESCENCE DECAY MEASUREMENT FOR POROUS Si AND ANALYSIS OF EMISSION MECHANISM ZHANG XIAO-RONG, BAO XI-MAO, YAN FENG, GAN CHANG-MING, CAI ZHI-GANG, HUANG XU-GUANG, ZHOU SHI-YING 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(11): 1874-1878. article doi:10.7498/aps.42.1874 10.7498/aps.42.1874 Acta Physica Sinica 42 11 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1874 1874-1878 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1879 Author(s): PAN SHI-HONG, WANG ZHONG-HE, HUANG SHUO, ZHANG CUN-ZHOU, ZHOU XIAO-CHUAN, XU GUI-CHANG, JIANG JIAN, CHEN ZHONG-GUI <br/><p>This paper reports the photoreflectance(PR) measurements of electric fields at the surface and the GaAs-GaAs interface of doped MBE GaAs films. By using alternatively He-Ne laser and He-Cd laser as pumping light, PR signals from the surface and the interface of the film can be effectively seperated the different penetration depth of different light. Electric fields at the surface and the interface were deduced from PR spectra. Film interference effects on modulation spectroscopy are studied. The origin of the electric field generated at interfaces are also discussed.</p> <br/>Acta Physica Sinica. 1993 42(11): 1879-1886. Published 2005-07-10 Author(s): PAN SHI-HONG, WANG ZHONG-HE, HUANG SHUO, ZHANG CUN-ZHOU, ZHOU XIAO-CHUAN, XU GUI-CHANG, JIANG JIAN, CHEN ZHONG-GUI <br/><p>This paper reports the photoreflectance(PR) measurements of electric fields at the surface and the GaAs-GaAs interface of doped MBE GaAs films. By using alternatively He-Ne laser and He-Cd laser as pumping light, PR signals from the surface and the interface of the film can be effectively seperated the different penetration depth of different light. Electric fields at the surface and the interface were deduced from PR spectra. Film interference effects on modulation spectroscopy are studied. The origin of the electric field generated at interfaces are also discussed.</p> <br/>Acta Physica Sinica. 1993 42(11): 1879-1886. Published 2005-07-10 PHOTOREFLECTANCE SPECTRA FROM SURFACES AND GaAs-GaAs INTERFACES OF DOPED MBE GaAs FILMS PAN SHI-HONG, WANG ZHONG-HE, HUANG SHUO, ZHANG CUN-ZHOU, ZHOU XIAO-CHUAN, XU GUI-CHANG, JIANG JIAN, CHEN ZHONG-GUI 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(11): 1879-1886. article doi:10.7498/aps.42.1879 10.7498/aps.42.1879 Acta Physica Sinica 42 11 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1879 1879-1886 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1887 Author(s): PAN ZHENG-YING <br/><p>Collision cascades of 1 keV/atom gold clusters and 0. 2 keV/atom aluminum clusters impacting on gold targets have been investigated by moleculardynamics simulation. The spectra of gold recoil atoms are broader for cluster bombardment. The maximum recoil energies are nearly 2? times higher than the kinematic limit of mono-atomic bombardment. The multiple hits and the collisions between moving atoms make the recoil energies of target atoms increase. The energy transfer between two moving atoms are studied by conservation laws.</p> <br/>Acta Physica Sinica. 1993 42(11): 1887-1894. Published 2005-07-10 Author(s): PAN ZHENG-YING <br/><p>Collision cascades of 1 keV/atom gold clusters and 0. 2 keV/atom aluminum clusters impacting on gold targets have been investigated by moleculardynamics simulation. The spectra of gold recoil atoms are broader for cluster bombardment. The maximum recoil energies are nearly 2? times higher than the kinematic limit of mono-atomic bombardment. The multiple hits and the collisions between moving atoms make the recoil energies of target atoms increase. The energy transfer between two moving atoms are studied by conservation laws.</p> <br/>Acta Physica Sinica. 1993 42(11): 1887-1894. Published 2005-07-10 COLLISION CASCADES INDUCED BY LOW ENERGY CLUSTERS IMPACTING ON METALLIC THIN FILMS ( I )——HIGH ENERGY RECOIL ATOMS PAN ZHENG-YING 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(11): 1887-1894. article doi:10.7498/aps.42.1887 10.7498/aps.42.1887 Acta Physica Sinica 42 11 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1887 1887-1894

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