//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.42.1375 Author(s): FANG JIN-QING, YAO WEI-GUANG <br/><p>In this paper, the inverse operator method (IOM) is described briefly. We have realized the IOM for the solutions of nonlinear dynamical equations by the mathematics-mechanization (MM) with computers. They can then offer a new and powerful method applicable to many areas of physics. We have applied them successfully to study the chaotic behaviors of some nonlinear dynamical equations. As typical examples, the well-known Lorentz equation, generalized Duffing equation and two coulped generalized Duffing equations are investigated by the use of the IOM and the MM. The results are in good agreement with those given by Runge-Kutta method. So the IOM realized by the MM is of potential application valuable in nonlinear physics and many other fields.</p> <br/>Acta Physica Sinica. 1993 42(9): 1375-1384. Published 2005-07-10 Author(s): FANG JIN-QING, YAO WEI-GUANG <br/><p>In this paper, the inverse operator method (IOM) is described briefly. We have realized the IOM for the solutions of nonlinear dynamical equations by the mathematics-mechanization (MM) with computers. They can then offer a new and powerful method applicable to many areas of physics. We have applied them successfully to study the chaotic behaviors of some nonlinear dynamical equations. As typical examples, the well-known Lorentz equation, generalized Duffing equation and two coulped generalized Duffing equations are investigated by the use of the IOM and the MM. The results are in good agreement with those given by Runge-Kutta method. So the IOM realized by the MM is of potential application valuable in nonlinear physics and many other fields.</p> <br/>Acta Physica Sinica. 1993 42(9): 1375-1384. Published 2005-07-10 INVERSE OPERATOR METHOD FOR SOLUTIONS OF NONLINEAR DYNAMICAL EQUATIONS AND SOME TYPICAL APPLICATIONS FANG JIN-QING, YAO WEI-GUANG 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(9): 1375-1384. article doi:10.7498/aps.42.1375 10.7498/aps.42.1375 Acta Physica Sinica 42 9 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1375 1375-1384 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1385 Author(s): HUANG HONG-BIN <br/><p>Based on the mean field and Bogoliubov approximations, we linearize the Hamiltonian of a nonequilibrium Bose condensed system, which is created by an external coherent pump field, and coupled to a reservoir. It is found that the dynamical algebra of the linearized Hamiltonian is Heisenberg and SU(1,1) Lie algebra if the coupling to reservoir is not taken into account. By using the methods of coherent state, we obtain its eigenvalues and eigen-functions-direct product of displaced squeezed-number-states and generalized SU(1,1) coherent states. Then we introduce the retarded Green's functions of elementary excitations to calculate its spectrum in the coupling situation, and further give the state functions of exciton system in weakly coupling situation.</p> <br/>Acta Physica Sinica. 1993 42(9): 1385-1394. Published 2005-07-10 Author(s): HUANG HONG-BIN <br/><p>Based on the mean field and Bogoliubov approximations, we linearize the Hamiltonian of a nonequilibrium Bose condensed system, which is created by an external coherent pump field, and coupled to a reservoir. It is found that the dynamical algebra of the linearized Hamiltonian is Heisenberg and SU(1,1) Lie algebra if the coupling to reservoir is not taken into account. By using the methods of coherent state, we obtain its eigenvalues and eigen-functions-direct product of displaced squeezed-number-states and generalized SU(1,1) coherent states. Then we introduce the retarded Green's functions of elementary excitations to calculate its spectrum in the coupling situation, and further give the state functions of exciton system in weakly coupling situation.</p> <br/>Acta Physica Sinica. 1993 42(9): 1385-1394. Published 2005-07-10 COHERENT-STATE TREATMENT OF NONEQUILIBRIUM BOSE CONDENSATION HUANG HONG-BIN 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(9): 1385-1394. article doi:10.7498/aps.42.1385 10.7498/aps.42.1385 Acta Physica Sinica 42 9 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1385 1385-1394 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1395 Author(s): CHEN FANG-PEI <br/><p>The general forms of field equations and free particle's equations of motion for theories of gravitation are derived from the generalized Lagrangian densities of matter fields and free gravitational fields with the aid of invariant property in the (εmn,ξμ) transformations. The General Relativity, the ECSK theory and the general type R+R2+T2 theory of gravity with torsion are shown all to be the special case of the theory given in this paper.</p> <br/>Acta Physica Sinica. 1993 42(9): 1395-1402. Published 2005-07-10 Author(s): CHEN FANG-PEI <br/><p>The general forms of field equations and free particle's equations of motion for theories of gravitation are derived from the generalized Lagrangian densities of matter fields and free gravitational fields with the aid of invariant property in the (εmn,ξμ) transformations. The General Relativity, the ECSK theory and the general type R+R2+T2 theory of gravity with torsion are shown all to be the special case of the theory given in this paper.</p> <br/>Acta Physica Sinica. 1993 42(9): 1395-1402. Published 2005-07-10 GENERAL FORMS OF FIELD EQUATIONS AND FREE PARTICLE'S EQUATIONS OF MOTION FOR THEORIES OF GRAVITATION CHEN FANG-PEI 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(9): 1395-1402. article doi:10.7498/aps.42.1395 10.7498/aps.42.1395 Acta Physica Sinica 42 9 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1395 1395-1402 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1403 Author(s): YANG GUO-JIAN, HU GANG <br/><p>The fluorescence spectrum from a three-level atom in V configuration driven by strong coherent laser fields and the time-dependent squeezing effect in the fluorescence fields with different mixtures of the spectrum lines are investigated analytically.</p> <br/>Acta Physica Sinica. 1993 42(9): 1403-1409. Published 2005-07-10 Author(s): YANG GUO-JIAN, HU GANG <br/><p>The fluorescence spectrum from a three-level atom in V configuration driven by strong coherent laser fields and the time-dependent squeezing effect in the fluorescence fields with different mixtures of the spectrum lines are investigated analytically.</p> <br/>Acta Physica Sinica. 1993 42(9): 1403-1409. Published 2005-07-10 TEMPORAL SQUEEZING IN THE RADIATION OF THE FLUORESCENCE FROM A DRIVEN THREE-LEVEL ATOM YANG GUO-JIAN, HU GANG 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(9): 1403-1409. article doi:10.7498/aps.42.1403 10.7498/aps.42.1403 Acta Physica Sinica 42 9 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1403 1403-1409 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1410 Author(s): JIN CHUN-LIN, LI ZHONG, ZANG DE-HONG, YE HUI, TANG JIA-YONG, YANG FU-JIA <br/><p>The interaction of thermal alkali atoms on hot tungsten and platinum filaments has been studied experimentally. The positive ion current has been measured as a function of the surface temperature. Electron exchange between the adatom and metal surface and the change of work function of the adsorbed metal surface have been discussed.</p> <br/>Acta Physica Sinica. 1993 42(9): 1410-1415. Published 2005-07-10 Author(s): JIN CHUN-LIN, LI ZHONG, ZANG DE-HONG, YE HUI, TANG JIA-YONG, YANG FU-JIA <br/><p>The interaction of thermal alkali atoms on hot tungsten and platinum filaments has been studied experimentally. The positive ion current has been measured as a function of the surface temperature. Electron exchange between the adatom and metal surface and the change of work function of the adsorbed metal surface have been discussed.</p> <br/>Acta Physica Sinica. 1993 42(9): 1410-1415. Published 2005-07-10 CHARGE TRANSFER BETWEEN ALKALI ATOMS AND W,Pt SURFACES JIN CHUN-LIN, LI ZHONG, ZANG DE-HONG, YE HUI, TANG JIA-YONG, YANG FU-JIA 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(9): 1410-1415. article doi:10.7498/aps.42.1410 10.7498/aps.42.1410 Acta Physica Sinica 42 9 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1410 1410-1415 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1416 Author(s): HU WEI, FANG DU-FEI, WANG YAN-SEN, LU FU-QUAN, TANG JIA-YONG, YANG FU-JIA <br/><p>The cross section of inner-shell excitation followed by auto-ionization and total ionization cross section of lithium-like ions by electron impact have been calculated by using a distorted wave Born exchange approximation. The comparison of present data with close-coupling calculation and experimental measurement is satisfactory.</p> <br/>Acta Physica Sinica. 1993 42(9): 1416-1421. Published 2005-07-10 Author(s): HU WEI, FANG DU-FEI, WANG YAN-SEN, LU FU-QUAN, TANG JIA-YONG, YANG FU-JIA <br/><p>The cross section of inner-shell excitation followed by auto-ionization and total ionization cross section of lithium-like ions by electron impact have been calculated by using a distorted wave Born exchange approximation. The comparison of present data with close-coupling calculation and experimental measurement is satisfactory.</p> <br/>Acta Physica Sinica. 1993 42(9): 1416-1421. Published 2005-07-10 ELECTRON IMPACT IONIZATION CROSS SECTION FOR LITHIUM-LIKE IONS INCLUDING EXCITATION-AUTOIONIZATION CROSS SECTION HU WEI, FANG DU-FEI, WANG YAN-SEN, LU FU-QUAN, TANG JIA-YONG, YANG FU-JIA 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(9): 1416-1421. article doi:10.7498/aps.42.1416 10.7498/aps.42.1416 Acta Physica Sinica 42 9 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1416 1416-1421 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1422 Author(s): ZHAN DA-SAN <br/><p>In this paper, we study the property of the n-plane linear coherent optical-processing system. By using of the similarity theorem of the Fourier transform and the spatial frequency scaling transform, we can show that the value of parameters {zi}n-1 are of little improtance in two special cases. Moreove, we take the coherent optical imaging system and the spatial frequency scaling transform as two examples to demonstrate the validity of the theory proposed ih this paper.</p> <br/>Acta Physica Sinica. 1993 42(9): 1422-1430. Published 2005-07-10 Author(s): ZHAN DA-SAN <br/><p>In this paper, we study the property of the n-plane linear coherent optical-processing system. By using of the similarity theorem of the Fourier transform and the spatial frequency scaling transform, we can show that the value of parameters {zi}n-1 are of little improtance in two special cases. Moreove, we take the coherent optical imaging system and the spatial frequency scaling transform as two examples to demonstrate the validity of the theory proposed ih this paper.</p> <br/>Acta Physica Sinica. 1993 42(9): 1422-1430. Published 2005-07-10 A DISCUSSION ON THE n-PLANE LINEAR COHERENT OPTICAL-PROCESSING SYSTEM (I) ZHAN DA-SAN 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(9): 1422-1430. article doi:10.7498/aps.42.1422 10.7498/aps.42.1422 Acta Physica Sinica 42 9 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1422 1422-1430 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1431 Author(s): ZHAN DA-SAN <br/><p>We consider the property of the n-plane linear coherent optical-processing system in term of the similarity theorem of Fourier transform and the spatial frequency scaling transform. Suppose the initial system has arbitrary {zi}n-1 with zi being the spacing between the ith and (i + l)th planes. First, we can show that the initial system is equivalent to a system with different spacing, {zoi}n-1. Thus the values of system parameters {zi}n-1 are of little importance. Moreover, in this paper, the relation between the integral kernels of two arbitrary n-planc linear coherent optical-processing systems has been considered.</p> <br/>Acta Physica Sinica. 1993 42(9): 1431-1437. Published 2005-07-10 Author(s): ZHAN DA-SAN <br/><p>We consider the property of the n-plane linear coherent optical-processing system in term of the similarity theorem of Fourier transform and the spatial frequency scaling transform. Suppose the initial system has arbitrary {zi}n-1 with zi being the spacing between the ith and (i + l)th planes. First, we can show that the initial system is equivalent to a system with different spacing, {zoi}n-1. Thus the values of system parameters {zi}n-1 are of little importance. Moreover, in this paper, the relation between the integral kernels of two arbitrary n-planc linear coherent optical-processing systems has been considered.</p> <br/>Acta Physica Sinica. 1993 42(9): 1431-1437. Published 2005-07-10 A DISCUSSION ON THE n-PLANE LINEAR COHERENT OPTICAL-PROCESSING SYSTEM (Ⅱ) ZHAN DA-SAN 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(9): 1431-1437. article doi:10.7498/aps.42.1431 10.7498/aps.42.1431 Acta Physica Sinica 42 9 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1431 1431-1437 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1438 Author(s): ZHU SHI-TONG, SHEN WEN-DA <br/><p>The optical metric of a strong laser plasma is obtained by using the self-consistent density profile and the ponderomotive force potential for one dimensional isothermal expanding plasma. Its physical signification is explained.</p> <br/>Acta Physica Sinica. 1993 42(9): 1438-1442. Published 2005-07-10 Author(s): ZHU SHI-TONG, SHEN WEN-DA <br/><p>The optical metric of a strong laser plasma is obtained by using the self-consistent density profile and the ponderomotive force potential for one dimensional isothermal expanding plasma. Its physical signification is explained.</p> <br/>Acta Physica Sinica. 1993 42(9): 1438-1442. Published 2005-07-10 OPTICAL METRIC DESCRIPTION OF A STRONG LASER-PLASMA ZHU SHI-TONG, SHEN WEN-DA 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(9): 1438-1442. article doi:10.7498/aps.42.1438 10.7498/aps.42.1438 Acta Physica Sinica 42 9 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1438 1438-1442 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1443 Author(s): LI GAO-XIANG, PENG JIN-SHENG <br/><p>We have studied the influence of the Kerr effect on the average photon numbers, the degrees of second-order coherence, the degree of interbeam second-order coherence and the Cauchy-Schwartz inequality in the system consisting of an nondegenerate two-photon J-C model in a high-Q cavity filled with a Kerr-like medium.</p> <br/>Acta Physica Sinica. 1993 42(9): 1443-1451. Published 2005-07-10 Author(s): LI GAO-XIANG, PENG JIN-SHENG <br/><p>We have studied the influence of the Kerr effect on the average photon numbers, the degrees of second-order coherence, the degree of interbeam second-order coherence and the Cauchy-Schwartz inequality in the system consisting of an nondegenerate two-photon J-C model in a high-Q cavity filled with a Kerr-like medium.</p> <br/>Acta Physica Sinica. 1993 42(9): 1443-1451. Published 2005-07-10 PROPERTIES OF THE FIELD IN THE NONDEGENERATE TWO-PHOTON JAYNES-CUMMINGS MODEL INSIDE A HIGH Q CAVITY FILLED WITH A KERR-LIKE MEDIUM LI GAO-XIANG, PENG JIN-SHENG 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(9): 1443-1451. article doi:10.7498/aps.42.1443 10.7498/aps.42.1443 Acta Physica Sinica 42 9 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1443 1443-1451 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1452 Author(s): CAO QING, LUO ZHI-JIANG, ZHANG WEI-JUN, XIA YU-XING <br/><p>In this paper, we develope the auxiliary parameters method to treat thermal-insensitive resonators, derive a new analytic solution applying to any multielement resonator, and analy-ize the stability of resonators、 the thermal-stable charater of output mode and power in detail. Furthermore, by introducing the concept of thermal sensitive degree, we obtain the optimal thermal-insensitive conditions :g1g2=1/2, μ1= 0.</p> <br/>Acta Physica Sinica. 1993 42(9): 1452-1458. Published 2005-07-10 Author(s): CAO QING, LUO ZHI-JIANG, ZHANG WEI-JUN, XIA YU-XING <br/><p>In this paper, we develope the auxiliary parameters method to treat thermal-insensitive resonators, derive a new analytic solution applying to any multielement resonator, and analy-ize the stability of resonators、 the thermal-stable charater of output mode and power in detail. Furthermore, by introducing the concept of thermal sensitive degree, we obtain the optimal thermal-insensitive conditions :g1g2=1/2, μ1= 0.</p> <br/>Acta Physica Sinica. 1993 42(9): 1452-1458. Published 2005-07-10 ANALYSIS OF DYNAMIC THERMAL-INSENSITIVE RESONATORS CAO QING, LUO ZHI-JIANG, ZHANG WEI-JUN, XIA YU-XING 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(9): 1452-1458. article doi:10.7498/aps.42.1452 10.7498/aps.42.1452 Acta Physica Sinica 42 9 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1452 1452-1458 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1459 Author(s): LIU JIN-SONG <br/><p>The method of two-stage coherent optical amplification was put forward based on the principle of two-beam coupling. This not only makes it possible that two pieces of low quality crystals can yield the result that one piece of high quality crystal reaches, but also solves the problem that the amplification coefficient can not be greatly increased by means of one-stage amplification. The feasibility of the method was proved by theoretical analysis and experimental demonstration.</p> <br/>Acta Physica Sinica. 1993 42(9): 1459-1462. Published 2005-07-10 Author(s): LIU JIN-SONG <br/><p>The method of two-stage coherent optical amplification was put forward based on the principle of two-beam coupling. This not only makes it possible that two pieces of low quality crystals can yield the result that one piece of high quality crystal reaches, but also solves the problem that the amplification coefficient can not be greatly increased by means of one-stage amplification. The feasibility of the method was proved by theoretical analysis and experimental demonstration.</p> <br/>Acta Physica Sinica. 1993 42(9): 1459-1462. Published 2005-07-10 MULTI-STAGE COHERENT OPTICAL AMPLIFICATION BASED ON TWO-BEAM COUPLING LIU JIN-SONG 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(9): 1459-1462. article doi:10.7498/aps.42.1459 10.7498/aps.42.1459 Acta Physica Sinica 42 9 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1459 1459-1462 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1463 Author(s): S. T. BAI, ZHOU TING-DONG <br/><p>Current distributions of glow discharge plasma in 3-D space were theoretically analyzed with analytic method. The characterestics of the current continuity and self consistency of the theory were demonstrated. Deficiencies and inconsistencies in the result obtained from other models were also discussed and analyzed. The present results are believed to be useful and significant in the study of low temperature plasma.</p> <br/>Acta Physica Sinica. 1993 42(9): 1463-1470. Published 2005-07-10 Author(s): S. T. BAI, ZHOU TING-DONG <br/><p>Current distributions of glow discharge plasma in 3-D space were theoretically analyzed with analytic method. The characterestics of the current continuity and self consistency of the theory were demonstrated. Deficiencies and inconsistencies in the result obtained from other models were also discussed and analyzed. The present results are believed to be useful and significant in the study of low temperature plasma.</p> <br/>Acta Physica Sinica. 1993 42(9): 1463-1470. Published 2005-07-10 THEORETICAL ANALYSIS OF CURRENT DISTRIBUTIONS OF GLOW DISCHARGE PLASMA IN 3-DIMENSIONAL SPACE S. T. BAI, ZHOU TING-DONG 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(9): 1463-1470. article doi:10.7498/aps.42.1463 10.7498/aps.42.1463 Acta Physica Sinica 42 9 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1463 1463-1470 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1471 Author(s): ZHU SHI-TONG, SHEN WEN-DA, GUO QI-ZHI <br/><p>The wave function of free electron in a strong laser plasma is obtained by solving exactly the Dirac equation in a curved space-time with optical metric for the laser plasma. When the laser field is diminshed to zero, the wave function is naturally reduced to relativistic wave function of free electron. The possible application of the wave function is discussed.</p> <br/>Acta Physica Sinica. 1993 42(9): 1471-1478. Published 2005-07-10 Author(s): ZHU SHI-TONG, SHEN WEN-DA, GUO QI-ZHI <br/><p>The wave function of free electron in a strong laser plasma is obtained by solving exactly the Dirac equation in a curved space-time with optical metric for the laser plasma. When the laser field is diminshed to zero, the wave function is naturally reduced to relativistic wave function of free electron. The possible application of the wave function is discussed.</p> <br/>Acta Physica Sinica. 1993 42(9): 1471-1478. Published 2005-07-10 WAVE FUNCTION OF FREE ELECTRON IN A STRONG LASER PLASMA ZHU SHI-TONG, SHEN WEN-DA, GUO QI-ZHI 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(9): 1471-1478. article doi:10.7498/aps.42.1471 10.7498/aps.42.1471 Acta Physica Sinica 42 9 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1471 1471-1478 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1479 Author(s): LI CHAO-RONG, MAI ZHEN-HONG, P. D. HATTON, C. H. DU <br/><p>The YBa2Cu3Oy thin film on LaAlO3 substrate was investigated by triple axis scattering. Stress, main defects in the film and the crystallographic relationship between the thin film and substrate were studied. Experimental results show that the thin film on substrate was slmost totally relaxed and very low strain and stress existed in the film. The film behaves as a "free" bulk layer on the subtrate. The larger mosaic width of the film indicates the film has poor crystallinity and includes a lot of lattice misorientation defects. Misorientations between the film and substrate were observed in both the perpendicular and parallel direction of the surface.</p> <br/>Acta Physica Sinica. 1993 42(9): 1479-1484. Published 2005-07-10 Author(s): LI CHAO-RONG, MAI ZHEN-HONG, P. D. HATTON, C. H. DU <br/><p>The YBa2Cu3Oy thin film on LaAlO3 substrate was investigated by triple axis scattering. Stress, main defects in the film and the crystallographic relationship between the thin film and substrate were studied. Experimental results show that the thin film on substrate was slmost totally relaxed and very low strain and stress existed in the film. The film behaves as a "free" bulk layer on the subtrate. The larger mosaic width of the film indicates the film has poor crystallinity and includes a lot of lattice misorientation defects. Misorientations between the film and substrate were observed in both the perpendicular and parallel direction of the surface.</p> <br/>Acta Physica Sinica. 1993 42(9): 1479-1484. Published 2005-07-10 X-RAY TRIPLE AXIS SCATTERING STUDIES OF YBa2Cu3Oy SUPERCONDUCTING THIN FILM LI CHAO-RONG, MAI ZHEN-HONG, P. D. HATTON, C. H. DU 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(9): 1479-1484. article doi:10.7498/aps.42.1479 10.7498/aps.42.1479 Acta Physica Sinica 42 9 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1479 1479-1484 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1485 Author(s): LI JIAN-HUA, MAI ZHEN-HONG, CUI SHU-FAN <br/><p>In this paper, strain relaxed InGaAs/GaAs strained-layer superlattice has been studied by X-ray double-crystal diffraction and topography. By simulating the double-crystal rocking curves using X-ray dynamical scattering theory, important imformation such as the structure, the mechanism and degree of strain relaxation, the misorientation between the superlattice layers and the substrate and misfit dislocation density, and so forth are obtained. The misfit dislocation distribution at the interface between the superlattice layers and the substrate and in the superlattice layers are observed by double-crystal topography.</p> <br/>Acta Physica Sinica. 1993 42(9): 1485-1490. Published 2005-07-10 Author(s): LI JIAN-HUA, MAI ZHEN-HONG, CUI SHU-FAN <br/><p>In this paper, strain relaxed InGaAs/GaAs strained-layer superlattice has been studied by X-ray double-crystal diffraction and topography. By simulating the double-crystal rocking curves using X-ray dynamical scattering theory, important imformation such as the structure, the mechanism and degree of strain relaxation, the misorientation between the superlattice layers and the substrate and misfit dislocation density, and so forth are obtained. The misfit dislocation distribution at the interface between the superlattice layers and the substrate and in the superlattice layers are observed by double-crystal topography.</p> <br/>Acta Physica Sinica. 1993 42(9): 1485-1490. Published 2005-07-10 X-RAY DOUBLE-CRYSTAL DIFFRACTION AND TOPOGRAPHY STUDY OF STRAIN RELAXED InGaAs/GaAs SUPERLATTICES LI JIAN-HUA, MAI ZHEN-HONG, CUI SHU-FAN 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(9): 1485-1490. article doi:10.7498/aps.42.1485 10.7498/aps.42.1485 Acta Physica Sinica 42 9 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1485 1485-1490 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1491 Author(s): CHEN KUI-YING, LI QING-CHUN <br/><p>Based on pair potential of atoms determined by general nonlocal model pseudopotential and molecular dynamics simulation techniques of NPT ensemble, we investigated micrody-namical behaviors of supercooled liquid Mg-Ca alloy, examined characteristics of atomic autocorrelation functions of density with time、 wavevector and temperature. Results show that, with deseasing temperature, correlation length of autocorrelation function increases. In the supercooling range, the system exhibits structure slowing down phenomenon to some extent. In addition, results of model coupling theory, within the supercooling range in the present paper, are applicalle to liquid Mg-Ca alloy.</p> <br/>Acta Physica Sinica. 1993 42(9): 1491-1498. Published 2005-07-10 Author(s): CHEN KUI-YING, LI QING-CHUN <br/><p>Based on pair potential of atoms determined by general nonlocal model pseudopotential and molecular dynamics simulation techniques of NPT ensemble, we investigated micrody-namical behaviors of supercooled liquid Mg-Ca alloy, examined characteristics of atomic autocorrelation functions of density with time、 wavevector and temperature. Results show that, with deseasing temperature, correlation length of autocorrelation function increases. In the supercooling range, the system exhibits structure slowing down phenomenon to some extent. In addition, results of model coupling theory, within the supercooling range in the present paper, are applicalle to liquid Mg-Ca alloy.</p> <br/>Acta Physica Sinica. 1993 42(9): 1491-1498. Published 2005-07-10 MICRODYNAMICAL BEHAVIORS OF SUPERCOOLED LIQUID Mg-Ca ALLOY CHEN KUI-YING, LI QING-CHUN 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(9): 1491-1498. article doi:10.7498/aps.42.1491 10.7498/aps.42.1491 Acta Physica Sinica 42 9 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1491 1491-1498 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1499 Author(s): WANG WEI-HUA, BAI HAI-YANG, ZHANG YUN, CHEN HONG, WANG WEN-KUI <br/><p>The interfacial solid state reaction was studied in the Ni/a-Si multilayer. The thermody-namic and kinetic aspects of the solid state amorphization was explained according to the calculated metastable free energy diagram. A kinetic reaction model for the solid state amorphization reaction of Ni/a-Si multilayers is developed.</p> <br/>Acta Physica Sinica. 1993 42(9): 1499-1504. Published 2005-07-10 Author(s): WANG WEI-HUA, BAI HAI-YANG, ZHANG YUN, CHEN HONG, WANG WEN-KUI <br/><p>The interfacial solid state reaction was studied in the Ni/a-Si multilayer. The thermody-namic and kinetic aspects of the solid state amorphization was explained according to the calculated metastable free energy diagram. A kinetic reaction model for the solid state amorphization reaction of Ni/a-Si multilayers is developed.</p> <br/>Acta Physica Sinica. 1993 42(9): 1499-1504. Published 2005-07-10 THERMODYNAMIC AND KINETIC ASPECTS OF SOLID STATE AMORPHIZATION REACTION IN Ni/a-Si MULTILAYER SYSTEM WANG WEI-HUA, BAI HAI-YANG, ZHANG YUN, CHEN HONG, WANG WEN-KUI 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(9): 1499-1504. article doi:10.7498/aps.42.1499 10.7498/aps.42.1499 Acta Physica Sinica 42 9 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1499 1499-1504 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1505 Author(s): WANG WEI-HUA, BAI HAI-YANG, ZHANG YUN, CHEN HONG, WANG WEN-KUI <br/><p>he diffusion mechanism of the Ni in amorphous Si was studied by in situ X-ray diffraction technique in amorphous Ni/Si multilayer. The temperature dependent diffusivity of Ni in amorphous Si was obtained in the form of Arrheneius relationship. A trap-retarded interstitial diffusion mechanism is suggested to explain the diffusion process of Ni in amorphous Si.</p> <br/>Acta Physica Sinica. 1993 42(9): 1505-1509. Published 2005-07-10 Author(s): WANG WEI-HUA, BAI HAI-YANG, ZHANG YUN, CHEN HONG, WANG WEN-KUI <br/><p>he diffusion mechanism of the Ni in amorphous Si was studied by in situ X-ray diffraction technique in amorphous Ni/Si multilayer. The temperature dependent diffusivity of Ni in amorphous Si was obtained in the form of Arrheneius relationship. A trap-retarded interstitial diffusion mechanism is suggested to explain the diffusion process of Ni in amorphous Si.</p> <br/>Acta Physica Sinica. 1993 42(9): 1505-1509. Published 2005-07-10 STUDY THE DIFFUSION MECHANISM OF Ni IN AMORPHOUS Si BY X-RAY DIFFRACTION WANG WEI-HUA, BAI HAI-YANG, ZHANG YUN, CHEN HONG, WANG WEN-KUI 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(9): 1505-1509. article doi:10.7498/aps.42.1505 10.7498/aps.42.1505 Acta Physica Sinica 42 9 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1505 1505-1509 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1510 Author(s): KE SAN-HUANG, WANG REN-ZHI, HUANG MEI-CHUN <br/><p>The electronic structures of the strained superlattice (SLS) (InAs)1 (InP)1 (001)under two strain conditions (free-standing model and InP-substrate model) and the strained bulk materials corresponding to the molecular layers in the SLS as well as the unstrained bulk materials are calculated with the ab initio LMTO band structure method. The average bond energy of molecular layers in the two SLS are determined with the frozen-potential approach. The results show that the average bond energies are well aligned across the interfaces and this alignment is not almost affected by the condition of strain. Thus, the average bond energy can be considered as a very reasonable reference energy level for determined the valence band offset in SLS. The strain effects on the band structures of molecular layers in SLS and on the △Ev values are investigated. Results given by frozen potential approach and using Em as a reference level in this paper are in good agreement with the available experimental datum from XPS measurement.</p> <br/>Acta Physica Sinica. 1993 42(9): 1510-1514. Published 2005-07-10 Author(s): KE SAN-HUANG, WANG REN-ZHI, HUANG MEI-CHUN <br/><p>The electronic structures of the strained superlattice (SLS) (InAs)1 (InP)1 (001)under two strain conditions (free-standing model and InP-substrate model) and the strained bulk materials corresponding to the molecular layers in the SLS as well as the unstrained bulk materials are calculated with the ab initio LMTO band structure method. The average bond energy of molecular layers in the two SLS are determined with the frozen-potential approach. The results show that the average bond energies are well aligned across the interfaces and this alignment is not almost affected by the condition of strain. Thus, the average bond energy can be considered as a very reasonable reference energy level for determined the valence band offset in SLS. The strain effects on the band structures of molecular layers in SLS and on the △Ev values are investigated. Results given by frozen potential approach and using Em as a reference level in this paper are in good agreement with the available experimental datum from XPS measurement.</p> <br/>Acta Physica Sinica. 1993 42(9): 1510-1514. Published 2005-07-10 THE AVERAGE BOND ENERGY AND THE VALENCE-BAND EDGE OFFSET AT THE INTERFACE OF STRAINED SUPERLATTICE InAs/InP KE SAN-HUANG, WANG REN-ZHI, HUANG MEI-CHUN 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(9): 1510-1514. article doi:10.7498/aps.42.1510 10.7498/aps.42.1510 Acta Physica Sinica 42 9 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1510 1510-1514 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1515 Author(s): YU ZHI-GANG, LI LIE-MING, SUN XIN <br/><p>We have investigated the effect of the competition between the electron-electron and elec-tron-phonon interactions on the ground state of MX complex and its third-harmonic generation (THG). On the basis of Hubbard model, the Hartree-Fock(HF) approximation is valid in studying the system when the strength of electron-electron interaction U is less then 2t0(t0is the hopping between M dz2 and X Pz orbitals). As a result, we discover that (i) With U increasing, the system changes from charge density wave (CDW) to spin density wave(SDW). (ii )This phase transition takes place at U～1.2t0 and is a first-order one. (iii) At the critical point, the band gap reaches minimum, thus a large THG is obtained. Based on these results, some proposal is put forward to search for nonlinear optical materials.</p> <br/>Acta Physica Sinica. 1993 42(9): 1515-1521. Published 2005-07-10 Author(s): YU ZHI-GANG, LI LIE-MING, SUN XIN <br/><p>We have investigated the effect of the competition between the electron-electron and elec-tron-phonon interactions on the ground state of MX complex and its third-harmonic generation (THG). On the basis of Hubbard model, the Hartree-Fock(HF) approximation is valid in studying the system when the strength of electron-electron interaction U is less then 2t0(t0is the hopping between M dz2 and X Pz orbitals). As a result, we discover that (i) With U increasing, the system changes from charge density wave (CDW) to spin density wave(SDW). (ii )This phase transition takes place at U～1.2t0 and is a first-order one. (iii) At the critical point, the band gap reaches minimum, thus a large THG is obtained. Based on these results, some proposal is put forward to search for nonlinear optical materials.</p> <br/>Acta Physica Sinica. 1993 42(9): 1515-1521. Published 2005-07-10 EFFECT OF CHARGE DENSITY WAVE AND SPIN DENSITY WAVE ON THE THIRD HARMONIC GENERATION IN MX COMPLEX YU ZHI-GANG, LI LIE-MING, SUN XIN 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(9): 1515-1521. article doi:10.7498/aps.42.1515 10.7498/aps.42.1515 Acta Physica Sinica 42 9 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1515 1515-1521 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1522 Author(s): SHEN KANG-MIN, DING YUE-MING <br/><p>The matrix of optical array with aperture in the element is presented by the Fresnel diffraction intergral. The synthetical imaging aberration of the array is dicussed, the condition of eliminating such aberration is satified with α,β, γ,δ conditions. The reference plane should be shifted with the moving of the aperture in the element.</p> <br/>Acta Physica Sinica. 1993 42(9): 1522-1528. Published 2005-07-10 Author(s): SHEN KANG-MIN, DING YUE-MING <br/><p>The matrix of optical array with aperture in the element is presented by the Fresnel diffraction intergral. The synthetical imaging aberration of the array is dicussed, the condition of eliminating such aberration is satified with α,β, γ,δ conditions. The reference plane should be shifted with the moving of the aperture in the element.</p> <br/>Acta Physica Sinica. 1993 42(9): 1522-1528. Published 2005-07-10 MATRIX OF OPTICAL ARRAY AND ITS OPTICAL PROPERTIES SHEN KANG-MIN, DING YUE-MING 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(9): 1522-1528. article doi:10.7498/aps.42.1522 10.7498/aps.42.1522 Acta Physica Sinica 42 9 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1522 1522-1528 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1529 Author(s): CHENG WEN-QIN, LIU SHUANG, ZHOU JUN-MING, LIU YU-LONG, ZHU KE <br/><p>The photoluminescence spectra of (110) modulation-doped GaAs-AlGaAs het-erostructures grown under high and low carbon background were measured at 4.2K. For high carbon specimen the luminescence peak from the recombination of 2D electrons in channel with holes bound to neutral acceptors was observed, while for low carbon specimen only lines related to bulk GaAs were observed.</p> <br/>Acta Physica Sinica. 1993 42(9): 1529-1531. Published 2005-07-10 Author(s): CHENG WEN-QIN, LIU SHUANG, ZHOU JUN-MING, LIU YU-LONG, ZHU KE <br/><p>The photoluminescence spectra of (110) modulation-doped GaAs-AlGaAs het-erostructures grown under high and low carbon background were measured at 4.2K. For high carbon specimen the luminescence peak from the recombination of 2D electrons in channel with holes bound to neutral acceptors was observed, while for low carbon specimen only lines related to bulk GaAs were observed.</p> <br/>Acta Physica Sinica. 1993 42(9): 1529-1531. Published 2005-07-10 PHOTOLUMINESCENCE OF (110) MODULATION-DOPED GaAs-AlGaAs HETEROSTRUCTURES CHENG WEN-QIN, LIU SHUANG, ZHOU JUN-MING, LIU YU-LONG, ZHU KE 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(9): 1529-1531. article doi:10.7498/aps.42.1529 10.7498/aps.42.1529 Acta Physica Sinica 42 9 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1529 1529-1531 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1532 Author(s): AN ZHONG, LI ZHAN-JIE, YAO KAI-LUN <br/><p>We have studied electronic bound states and the localized modes around the soliton after turning on the next-neighbor hopping interaction, based on SSH model. The results show that (1) the electronhole symmetry of the energy band structure implied by SSH model is broken ; (2) the number and location of the bound states trapped by the soliton have changed; (3) a new localized mode have been found; (4)the frequencies of modes have shifted and their localization are strengthened.</p> <br/>Acta Physica Sinica. 1993 42(9): 1532-1536. Published 2005-07-10 Author(s): AN ZHONG, LI ZHAN-JIE, YAO KAI-LUN <br/><p>We have studied electronic bound states and the localized modes around the soliton after turning on the next-neighbor hopping interaction, based on SSH model. The results show that (1) the electronhole symmetry of the energy band structure implied by SSH model is broken ; (2) the number and location of the bound states trapped by the soliton have changed; (3) a new localized mode have been found; (4)the frequencies of modes have shifted and their localization are strengthened.</p> <br/>Acta Physica Sinica. 1993 42(9): 1532-1536. Published 2005-07-10 EFFECTS OF NEXT-NEIGHBOR HOPPING INTERACTIONS ON THE ELECTRONIC BOUND STATES AND LOCALIZED MODES AROUND A SOLITON IN TRANS-(CH)x AN ZHONG, LI ZHAN-JIE, YAO KAI-LUN 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(9): 1532-1536. article doi:10.7498/aps.42.1532 10.7498/aps.42.1532 Acta Physica Sinica 42 9 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1532 1532-1536 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1537 Author(s): ZHAO ZHENG, LIU LIAO <br/><p>We try to develop the Weyl gauge theory in a new direction. The Hawking effect in black hole physics can be universally regarded as a compensate effect under the coordinate-scale transformation. The relevant quantum temperature is a pure-gauge potential of the compensate field.</p> <br/>Acta Physica Sinica. 1993 42(9): 1537-1542. Published 2005-07-10 Author(s): ZHAO ZHENG, LIU LIAO <br/><p>We try to develop the Weyl gauge theory in a new direction. The Hawking effect in black hole physics can be universally regarded as a compensate effect under the coordinate-scale transformation. The relevant quantum temperature is a pure-gauge potential of the compensate field.</p> <br/>Acta Physica Sinica. 1993 42(9): 1537-1542. Published 2005-07-10 HAWKING EFFECT AS A COMPENSATE EFFECT UNDER THE COORDINATE-SCALE TRANSFORMATION ZHAO ZHENG, LIU LIAO 2005-07-10 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1993 42(9): 1537-1542. article doi:10.7498/aps.42.1537 10.7498/aps.42.1537 Acta Physica Sinica 42 9 2005-07-10 //www.getgobooth.com/en/article/doi/10.7498/aps.42.1537 1537-1542

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