Acta Physica Sinica //www.getgobooth.com/ 必威体育下载 daily 15 2024-08-20 10:33:39 apsoffice@iphy.ac.cn apsoffice@iphy.ac.cn 2024-08-20 10:33:39 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 <![CDATA[NONEQUILIBRIUM STATISTICAL FIELD THEORY AND CRITICAL DYNAMICS (Ⅰ)——GENERALIZED LANGEVIN EQUATION]]> //www.getgobooth.com/en/article/doi/10.7498/aps.29.961 Author(s): ZHOU GUANG-ZHAO, SU ZHAO-BIN, HAO BAI-LIN, YU LU <br/><p>Starting from the equations satisfied by the vertex functions on the closed time path, we derived the generalized Langevin equations for the order parameters and the conserved variables. The proper form of the equations for the conserved variables, including automatically the mode coupling terms, was determined from the Ward-Taka-hashi identities and the linear response theory. All existing dynamic models were recovered by assuming the corresponding symmetry properties of the system. The whole theoretical framework is also applicable for describing the systems near steady states far from equilibrium.</p> <br/>Acta Physica Sinica. 1980 29(8): 961-968. Published 1980-04-05 Author(s): ZHOU GUANG-ZHAO, SU ZHAO-BIN, HAO BAI-LIN, YU LU <br/><p>Starting from the equations satisfied by the vertex functions on the closed time path, we derived the generalized Langevin equations for the order parameters and the conserved variables. The proper form of the equations for the conserved variables, including automatically the mode coupling terms, was determined from the Ward-Taka-hashi identities and the linear response theory. All existing dynamic models were recovered by assuming the corresponding symmetry properties of the system. The whole theoretical framework is also applicable for describing the systems near steady states far from equilibrium.</p> <br/>Acta Physica Sinica. 1980 29(8): 961-968. Published 1980-04-05 NONEQUILIBRIUM STATISTICAL FIELD THEORY AND CRITICAL DYNAMICS (Ⅰ)——GENERALIZED LANGEVIN EQUATION ZHOU GUANG-ZHAO, SU ZHAO-BIN, HAO BAI-LIN, YU LU 1980-04-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1980 29(8): 961-968. article doi:10.7498/aps.29.961 10.7498/aps.29.961 Acta Physica Sinica 29 8 1980-04-05 //www.getgobooth.com/en/article/doi/10.7498/aps.29.961 961-968 <![CDATA[NONEQUILIBRIUM STATISTICAL FIELD THEORY AND CRITICAL DYNAMICS (Ⅱ)——LAGRANGIAN FIELD THEORY FORMULATION]]> //www.getgobooth.com/en/article/doi/10.7498/aps.29.969 Author(s): ZHOU GUANG-ZHAO, HAO BAI-LIN, YU LU <br/><p>The expression of the effective action for the order parameters is derived from the continuous integral representation for the generating functional on the closed time path in the one loop approximation for the Fourier transforms. The Lagrangian formulation of the critical dynamics is recovered in the second order approximation of fluctuations in the closed time path continuous integral. The various possibilities of improving the existing theory of critical dynamics are considered.</p> <br/>Acta Physica Sinica. 1980 29(8): 969-977. Published 1980-04-05 Author(s): ZHOU GUANG-ZHAO, HAO BAI-LIN, YU LU <br/><p>The expression of the effective action for the order parameters is derived from the continuous integral representation for the generating functional on the closed time path in the one loop approximation for the Fourier transforms. The Lagrangian formulation of the critical dynamics is recovered in the second order approximation of fluctuations in the closed time path continuous integral. The various possibilities of improving the existing theory of critical dynamics are considered.</p> <br/>Acta Physica Sinica. 1980 29(8): 969-977. Published 1980-04-05 NONEQUILIBRIUM STATISTICAL FIELD THEORY AND CRITICAL DYNAMICS (Ⅱ)——LAGRANGIAN FIELD THEORY FORMULATION ZHOU GUANG-ZHAO, HAO BAI-LIN, YU LU 1980-04-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1980 29(8): 969-977. article doi:10.7498/aps.29.969 10.7498/aps.29.969 Acta Physica Sinica 29 8 1980-04-05 //www.getgobooth.com/en/article/doi/10.7498/aps.29.969 969-977 <![CDATA[ENERGY BAND THEORY OF HETEROMETAL SUPERPOSED FILM]]> //www.getgobooth.com/en/article/doi/10.7498/aps.29.978 Author(s): ZHANG LI-YUAN, YIN DAO-LE <br/><p>In this paper, we introduced the concept of the interface plane wave orbits (IPWO). A method for calculating the interface electronic structure of heterometal superposed film was given. It is called MTO-IPWO-PWO Method.</p> <br/>Acta Physica Sinica. 1980 29(8): 978-986. Published 1980-04-05 Author(s): ZHANG LI-YUAN, YIN DAO-LE <br/><p>In this paper, we introduced the concept of the interface plane wave orbits (IPWO). A method for calculating the interface electronic structure of heterometal superposed film was given. It is called MTO-IPWO-PWO Method.</p> <br/>Acta Physica Sinica. 1980 29(8): 978-986. Published 1980-04-05 ENERGY BAND THEORY OF HETEROMETAL SUPERPOSED FILM ZHANG LI-YUAN, YIN DAO-LE 1980-04-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1980 29(8): 978-986. article doi:10.7498/aps.29.978 10.7498/aps.29.978 Acta Physica Sinica 29 8 1980-04-05 //www.getgobooth.com/en/article/doi/10.7498/aps.29.978 978-986 <![CDATA[AN EMPIRICAL CORRELATION BETWEEN SUPERCONDUCTING TRANSITION TEMPERATURES T<sub<c</sub< AND THE HALL COEFFICIENTS IN AMORPHOUS SUPERCONDUCTORS]]> //www.getgobooth.com/en/article/doi/10.7498/aps.29.987 Author(s): CAO XIAO-WEN, LI YU-ZHI, XIA JIAN-SHENG, ZHANG YU-HENG <br/><p>It is found that there is an empirical correlation between the superconducting transition temperatures Tc and the Hall coefficients RH of amorphous states in numerous non-transition metals and alleys. The same correlation is also exist between the superconducting transition temperatures Tc of amorphous states and the Hall coefficients RHL, of corresponding liquid metals. Prom these empirical correlations we judge that disordered metals, including bismuth thalium zinc, lead and mercury, which have been reported up to now, remain to be not really amorphous.</p> <br/>Acta Physica Sinica. 1980 29(8): 987-991. Published 1980-04-05 Author(s): CAO XIAO-WEN, LI YU-ZHI, XIA JIAN-SHENG, ZHANG YU-HENG <br/><p>It is found that there is an empirical correlation between the superconducting transition temperatures Tc and the Hall coefficients RH of amorphous states in numerous non-transition metals and alleys. The same correlation is also exist between the superconducting transition temperatures Tc of amorphous states and the Hall coefficients RHL, of corresponding liquid metals. Prom these empirical correlations we judge that disordered metals, including bismuth thalium zinc, lead and mercury, which have been reported up to now, remain to be not really amorphous.</p> <br/>Acta Physica Sinica. 1980 29(8): 987-991. Published 1980-04-05 AN EMPIRICAL CORRELATION BETWEEN SUPERCONDUCTING TRANSITION TEMPERATURES T&lt;sub&lt;c&lt;/sub&lt; AND THE HALL COEFFICIENTS IN AMORPHOUS SUPERCONDUCTORS CAO XIAO-WEN, LI YU-ZHI, XIA JIAN-SHENG, ZHANG YU-HENG 1980-04-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1980 29(8): 987-991. article doi:10.7498/aps.29.987 10.7498/aps.29.987 Acta Physica Sinica 29 8 1980-04-05 //www.getgobooth.com/en/article/doi/10.7498/aps.29.987 987-991 <![CDATA[A.C.CONDUCTANCE OF ORGANIC SOLID THIN FILMS]]> //www.getgobooth.com/en/article/doi/10.7498/aps.29.992 Author(s): QIAN REN-YUAN, JIN XIANG-FENG, ZHOU SHU-QIN <br/><p>The frequency dependence of A.C. conductance of organic solid thin films have been discussed. It is pointed out that the dependence of conductance on the square of frequency is an artifact due to the electrode contact resistance and the capacity of the film. In this paper a method of an added external resistance is proposed to evaluate the electrode contact resistance and thereby the experimentally measured frequency dependences of conductance and capacity of the film could be corrected for the effect of electrode contact resistance. In order to characterize the A.C. conductance of organic solid thin films three parameters are suggested. That is, the D.C. specific conductance σd.c. at extremely low frequencies, the exponent n in the expression σ(f)∝fn for the region of higher frequencies and the value of fx at which the straight line on the lgσ-lgf plot intersects the horizontal line σ=σd.c. For a solution cast film of poly-vinylcarbazole (PVK)-2,4,7-trinitrofluorenone (TNF) (1:0.75) charge transfer complex and an evaporated film of copper phthalocyanine (PcCu) the following results were obtained:PVK-TNF(1:0.75):σd.c.=1.9·10-16(Ω·cm)-1,n=0.96,fx=6.1·10-3Hz at 14℃, PcCu: σd.c.=1.6·10-9(Ω·cm)-1,n=1.2,fx=1·105Hz at 17℃.</p> <br/>Acta Physica Sinica. 1980 29(8): 992-999. Published 1980-04-05 Author(s): QIAN REN-YUAN, JIN XIANG-FENG, ZHOU SHU-QIN <br/><p>The frequency dependence of A.C. conductance of organic solid thin films have been discussed. It is pointed out that the dependence of conductance on the square of frequency is an artifact due to the electrode contact resistance and the capacity of the film. In this paper a method of an added external resistance is proposed to evaluate the electrode contact resistance and thereby the experimentally measured frequency dependences of conductance and capacity of the film could be corrected for the effect of electrode contact resistance. In order to characterize the A.C. conductance of organic solid thin films three parameters are suggested. That is, the D.C. specific conductance σd.c. at extremely low frequencies, the exponent n in the expression σ(f)∝fn for the region of higher frequencies and the value of fx at which the straight line on the lgσ-lgf plot intersects the horizontal line σ=σd.c. For a solution cast film of poly-vinylcarbazole (PVK)-2,4,7-trinitrofluorenone (TNF) (1:0.75) charge transfer complex and an evaporated film of copper phthalocyanine (PcCu) the following results were obtained:PVK-TNF(1:0.75):σd.c.=1.9·10-16(Ω·cm)-1,n=0.96,fx=6.1·10-3Hz at 14℃, PcCu: σd.c.=1.6·10-9(Ω·cm)-1,n=1.2,fx=1·105Hz at 17℃.</p> <br/>Acta Physica Sinica. 1980 29(8): 992-999. Published 1980-04-05 A.C.CONDUCTANCE OF ORGANIC SOLID THIN FILMS QIAN REN-YUAN, JIN XIANG-FENG, ZHOU SHU-QIN 1980-04-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1980 29(8): 992-999. article doi:10.7498/aps.29.992 10.7498/aps.29.992 Acta Physica Sinica 29 8 1980-04-05 //www.getgobooth.com/en/article/doi/10.7498/aps.29.992 992-999 <![CDATA[A GENERAL TRANSFORMATION FORMULA FOR SHG COEFFI-C1ENTS OF A CRYSTAL AND THOSE OF ITS ANIONIC GROUPINGS]]> //www.getgobooth.com/en/article/doi/10.7498/aps.29.1000 Author(s): CHEN CHUANG-TIAN, CHEN XIAO-SHEN <br/><p>By using the irreducible tensor method of representing SHG coefficients, we have proposed in this paper a general transformation formula for SHG coefficients of the macroscopic crystal and those of its microscopic anionic groupings. It thus leads to a series of calculation formulas suitable generally for calculating the contributions of the anionic groupings of different orientations in the crystal to the macroscopic SHG coefficients. It has been shown that this method can be used conveniently to calculate the SHG coefficients of various iodates. The agreements of our calculation values with the experimental ones are quite satisfactory. Our work has provided a dear stero-structural criterion for searching of new types of SHG materials.</p> <br/>Acta Physica Sinica. 1980 29(8): 1000-1013. Published 1980-04-05 Author(s): CHEN CHUANG-TIAN, CHEN XIAO-SHEN <br/><p>By using the irreducible tensor method of representing SHG coefficients, we have proposed in this paper a general transformation formula for SHG coefficients of the macroscopic crystal and those of its microscopic anionic groupings. It thus leads to a series of calculation formulas suitable generally for calculating the contributions of the anionic groupings of different orientations in the crystal to the macroscopic SHG coefficients. It has been shown that this method can be used conveniently to calculate the SHG coefficients of various iodates. The agreements of our calculation values with the experimental ones are quite satisfactory. Our work has provided a dear stero-structural criterion for searching of new types of SHG materials.</p> <br/>Acta Physica Sinica. 1980 29(8): 1000-1013. Published 1980-04-05 A GENERAL TRANSFORMATION FORMULA FOR SHG COEFFI-C1ENTS OF A CRYSTAL AND THOSE OF ITS ANIONIC GROUPINGS CHEN CHUANG-TIAN, CHEN XIAO-SHEN 1980-04-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1980 29(8): 1000-1013. article doi:10.7498/aps.29.1000 10.7498/aps.29.1000 Acta Physica Sinica 29 8 1980-04-05 //www.getgobooth.com/en/article/doi/10.7498/aps.29.1000 1000-1013 <![CDATA[MOLECULAR STRUCTURE, CRYSTAL STRUCTURE AND ABSOLUTE CONFIGURATION OF TENACISS IGENIN]]> //www.getgobooth.com/en/article/doi/10.7498/aps.29.1014 Author(s): TENACISS IGENIN STRUCTURE GROUP <br/><p>The crystal of Tenaciss igenin with component C21H32O5 belongs to mono-clinic system. The space group is C22—P21. The crystal parameters are as follows: α=10.437?,b=12.467?,c=7.548?,β=109°57′, and of molecules number in an unit cell Z=2. The diffraction data were collected using pw-1100 four-circle diffractometer, the number of independent diffraction data amounts to 1770. The crystal structure was determined by direct method. Refinement of structure parameters was acheived by least-squares method, R= 0.098.The tenaciss igenin is steroid. B-ring and C-ring, C-ring and D-ring all exhibit cisforms. Between the molecules there exist bi-orientation hydrogen-bonds.</p> <br/>Acta Physica Sinica. 1980 29(8): 1014-1022. Published 1980-04-05 Author(s): TENACISS IGENIN STRUCTURE GROUP <br/><p>The crystal of Tenaciss igenin with component C21H32O5 belongs to mono-clinic system. The space group is C22—P21. The crystal parameters are as follows: α=10.437?,b=12.467?,c=7.548?,β=109°57′, and of molecules number in an unit cell Z=2. The diffraction data were collected using pw-1100 four-circle diffractometer, the number of independent diffraction data amounts to 1770. The crystal structure was determined by direct method. Refinement of structure parameters was acheived by least-squares method, R= 0.098.The tenaciss igenin is steroid. B-ring and C-ring, C-ring and D-ring all exhibit cisforms. Between the molecules there exist bi-orientation hydrogen-bonds.</p> <br/>Acta Physica Sinica. 1980 29(8): 1014-1022. Published 1980-04-05 MOLECULAR STRUCTURE, CRYSTAL STRUCTURE AND ABSOLUTE CONFIGURATION OF TENACISS IGENIN TENACISS IGENIN STRUCTURE GROUP 1980-04-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1980 29(8): 1014-1022. article doi:10.7498/aps.29.1014 10.7498/aps.29.1014 Acta Physica Sinica 29 8 1980-04-05 //www.getgobooth.com/en/article/doi/10.7498/aps.29.1014 1014-1022 <![CDATA[A NEW TYPE OF CONTINUOUS SOLID SOLUTIONS ——THE VARIATION OF CRYSTAL STRUCTURE TYPES OF Mg<sub<x/2</sub<Li<sub<1-x</sub<IO<sub<3</sub< WITH COMPOSITION]]> //www.getgobooth.com/en/article/doi/10.7498/aps.29.1023 Author(s): LIANG JING-KUI, ZHANG YU-LING, LIU HONG-BIN <br/><p>The variation of crystal structure types of Mgx/2Li1-xIO3 with composition and temperature has been investigated by the methods of DTA and X-ray powder diffraction both at high and room temperatures. A new type of continuous solid solutions has been found in the entire region of the binary system Mg(IIO3)2·LiIO3.For the solid solutions rich in LilO3, the crystal lattice is distorted in the x-y plane with the increasing concentration of Mg(IO3)2, While the space group changes from P63 to P1121. At the composition 3Mg(IO3)2·7LiIO3, the lattice distortion reaches a maximum,γ=120o22′. With further increasing of the concentration of Mg(IO3)2, the lattice distortion is reduced, and at the composition Mg(IO3)2·LiIO3) the space group turns back again to P63.For the solid solution rich in Mg(IO3)2, the lattice is distorted along the z axis, and has been found to be made of unit cells of heterogeneous parameters c (the effect is most prominent at the composition about 20-30mol% LiIO3). But with increasing temperature, the crystal lattice gradually changes back to unit cells with a uniform parameter.It seems probable that the lattice distortions in the solid solutions are caused by vacancies. The heterogeneous distribution of vacancies results in inhomogeneous parameters c, and it is also due to the presence of vacancies that alters the crystal fields around the anion group, causing the displacement and rotation of IO3- with the result that the lattice is distorted along x-y plane.</p> <br/>Acta Physica Sinica. 1980 29(8): 1023-1032. Published 1980-04-05 Author(s): LIANG JING-KUI, ZHANG YU-LING, LIU HONG-BIN <br/><p>The variation of crystal structure types of Mgx/2Li1-xIO3 with composition and temperature has been investigated by the methods of DTA and X-ray powder diffraction both at high and room temperatures. A new type of continuous solid solutions has been found in the entire region of the binary system Mg(IIO3)2·LiIO3.For the solid solutions rich in LilO3, the crystal lattice is distorted in the x-y plane with the increasing concentration of Mg(IO3)2, While the space group changes from P63 to P1121. At the composition 3Mg(IO3)2·7LiIO3, the lattice distortion reaches a maximum,γ=120o22′. With further increasing of the concentration of Mg(IO3)2, the lattice distortion is reduced, and at the composition Mg(IO3)2·LiIO3) the space group turns back again to P63.For the solid solution rich in Mg(IO3)2, the lattice is distorted along the z axis, and has been found to be made of unit cells of heterogeneous parameters c (the effect is most prominent at the composition about 20-30mol% LiIO3). But with increasing temperature, the crystal lattice gradually changes back to unit cells with a uniform parameter.It seems probable that the lattice distortions in the solid solutions are caused by vacancies. The heterogeneous distribution of vacancies results in inhomogeneous parameters c, and it is also due to the presence of vacancies that alters the crystal fields around the anion group, causing the displacement and rotation of IO3- with the result that the lattice is distorted along x-y plane.</p> <br/>Acta Physica Sinica. 1980 29(8): 1023-1032. Published 1980-04-05 A NEW TYPE OF CONTINUOUS SOLID SOLUTIONS ——THE VARIATION OF CRYSTAL STRUCTURE TYPES OF Mg&lt;sub&lt;x/2&lt;/sub&lt;Li&lt;sub&lt;1-x&lt;/sub&lt;IO&lt;sub&lt;3&lt;/sub&lt; WITH COMPOSITION LIANG JING-KUI, ZHANG YU-LING, LIU HONG-BIN 1980-04-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1980 29(8): 1023-1032. article doi:10.7498/aps.29.1023 10.7498/aps.29.1023 Acta Physica Sinica 29 8 1980-04-05 //www.getgobooth.com/en/article/doi/10.7498/aps.29.1023 1023-1032 <![CDATA[THE GEOMETRY OF LATTICE PLANES]]> //www.getgobooth.com/en/article/doi/10.7498/aps.29.1033 Author(s): YANG QI-BING, YE HENG-QIANG <br/><p>An analytical method to find correspondence matrix for basic vector transformation is given by using elementary theory of numbers. Methods for drawing of a lattice plane and of a composite lattice plane of two place lattices as well as their applications are discussed.</p> <br/>Acta Physica Sinica. 1980 29(8): 1033-1038. Published 1980-04-05 Author(s): YANG QI-BING, YE HENG-QIANG <br/><p>An analytical method to find correspondence matrix for basic vector transformation is given by using elementary theory of numbers. Methods for drawing of a lattice plane and of a composite lattice plane of two place lattices as well as their applications are discussed.</p> <br/>Acta Physica Sinica. 1980 29(8): 1033-1038. Published 1980-04-05 THE GEOMETRY OF LATTICE PLANES YANG QI-BING, YE HENG-QIANG 1980-04-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1980 29(8): 1033-1038. article doi:10.7498/aps.29.1033 10.7498/aps.29.1033 Acta Physica Sinica 29 8 1980-04-05 //www.getgobooth.com/en/article/doi/10.7498/aps.29.1033 1033-1038 <![CDATA[BANDS OF SCATTERED LIGHT PRODUCED IN AN α- LiIO<sub<3</sub< SINGLE CRYSTAL UNDER THE ACTION OF A DC ELECTRIC FIELD]]> //www.getgobooth.com/en/article/doi/10.7498/aps.29.1039 Author(s): YANG HUA-GUANG <br/><p>When a laser beam passes through an α-LilO3 single crystal under the action of a DC electric field along the c-axis, it is found that bands of scattered light are produced. The bands are perpendicular to the c-axis and subtend large, angles with the crystal as vertex. The distribution of intensity of the band is not symmetric with respect to the transmitted light spot. When the electric vector of incident beam is perpendicular to the c-axis, then that of scattered beam would be parallel to the c-axis; and when the former is parallel to the c-axis, then the latter would be perpendicular to the c-axis. If the former is neither perpendicular nor parallel to the c-axis then two bands would appear, the electric vectors of which are parallel and perpendicular to the c-axis respectively. Under specific condition, these bands coincide. The polarization, intensity and relaxation behaviour of these bands have been studied in detail. We believe that these bands result very likely from some effect of carriers moving along the c-axis in the crystal. In addition we have observed the defects in the crystal under the action of a DC electric field with optical microscope.</p> <br/>Acta Physica Sinica. 1980 29(8): 1039-1047. Published 1980-04-05 Author(s): YANG HUA-GUANG <br/><p>When a laser beam passes through an α-LilO3 single crystal under the action of a DC electric field along the c-axis, it is found that bands of scattered light are produced. The bands are perpendicular to the c-axis and subtend large, angles with the crystal as vertex. The distribution of intensity of the band is not symmetric with respect to the transmitted light spot. When the electric vector of incident beam is perpendicular to the c-axis, then that of scattered beam would be parallel to the c-axis; and when the former is parallel to the c-axis, then the latter would be perpendicular to the c-axis. If the former is neither perpendicular nor parallel to the c-axis then two bands would appear, the electric vectors of which are parallel and perpendicular to the c-axis respectively. Under specific condition, these bands coincide. The polarization, intensity and relaxation behaviour of these bands have been studied in detail. We believe that these bands result very likely from some effect of carriers moving along the c-axis in the crystal. In addition we have observed the defects in the crystal under the action of a DC electric field with optical microscope.</p> <br/>Acta Physica Sinica. 1980 29(8): 1039-1047. Published 1980-04-05 BANDS OF SCATTERED LIGHT PRODUCED IN AN α- LiIO&lt;sub&lt;3&lt;/sub&lt; SINGLE CRYSTAL UNDER THE ACTION OF A DC ELECTRIC FIELD YANG HUA-GUANG 1980-04-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1980 29(8): 1039-1047. article doi:10.7498/aps.29.1039 10.7498/aps.29.1039 Acta Physica Sinica 29 8 1980-04-05 //www.getgobooth.com/en/article/doi/10.7498/aps.29.1039 1039-1047 <![CDATA[CALCULATIONS OF THE EQUATIONS OF STATE FOR SOME SIMPLE METALS WITH PSEUDOPOTENTIAL METHOD]]> //www.getgobooth.com/en/article/doi/10.7498/aps.29.1048 Author(s): LI SHU-SHAN, LIN GUANG-HAI <br/><p>A new method for the determination of the parameter in the pseudopotential of the simplified Heine-Abarenkov model is proposed. In the present method the values of the parameter γc in the pseudopotential and the correction coefficient H for the average value of electron-ion interaction energy are determined from the experimental data of the bulk modulus and the lattice constant of the crystal at 0 K and 0 kbar. The equations of state for eleven simple metals (Li, Na, K, Rb, Cs, Ca, Al, Mg, Zn, Si and Ge) are calculated by means of this model potential and the second order perturbation theory. The calculated pressure-volume relations at 293K are compared with the experimental data. The agreement for all metals is fairly good except Zn for which the discrepancy between the different experimental data is relatively large.</p> <br/>Acta Physica Sinica. 1980 29(8): 1048-1057. Published 1980-04-05 Author(s): LI SHU-SHAN, LIN GUANG-HAI <br/><p>A new method for the determination of the parameter in the pseudopotential of the simplified Heine-Abarenkov model is proposed. In the present method the values of the parameter γc in the pseudopotential and the correction coefficient H for the average value of electron-ion interaction energy are determined from the experimental data of the bulk modulus and the lattice constant of the crystal at 0 K and 0 kbar. The equations of state for eleven simple metals (Li, Na, K, Rb, Cs, Ca, Al, Mg, Zn, Si and Ge) are calculated by means of this model potential and the second order perturbation theory. The calculated pressure-volume relations at 293K are compared with the experimental data. The agreement for all metals is fairly good except Zn for which the discrepancy between the different experimental data is relatively large.</p> <br/>Acta Physica Sinica. 1980 29(8): 1048-1057. Published 1980-04-05 CALCULATIONS OF THE EQUATIONS OF STATE FOR SOME SIMPLE METALS WITH PSEUDOPOTENTIAL METHOD LI SHU-SHAN, LIN GUANG-HAI 1980-04-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1980 29(8): 1048-1057. article doi:10.7498/aps.29.1048 10.7498/aps.29.1048 Acta Physica Sinica 29 8 1980-04-05 //www.getgobooth.com/en/article/doi/10.7498/aps.29.1048 1048-1057 <![CDATA[A NEW METHOD FOR SOLVING THE FREE-BOUNDARG MAGNETIC SURFACE EQUATION WITHOUT CONDUCTING SHELLS]]> //www.getgobooth.com/en/article/doi/10.7498/aps.29.1058 Author(s): SHEN JIE-WU, ZHOU YU-MEI, QING CHENG-RUI <br/><p>The iteration method for solving the free-boundary magnetic surface equation with conducting shells has been generalized to the case of infinite region with external currents and without conducting shells. In order to do this a coordinate transformation of the form x′=x/(1+x) is carried out which enables to get a sufficient accuracy inthe region of plasmas while the meshes in the region of vacuum would not be increased. After restricting the radial region of the plasma currents the iteraction series described in [1] can be used to find the equilibrium solution of magnetic surface equation. The numerical solution of this equation in one dimension is obtained and compared with the result obtained analytically. The method described above can effectively be used in cases of two-dimension without difficulties.</p> <br/>Acta Physica Sinica. 1980 29(8): 1058-1062. Published 1980-04-05 Author(s): SHEN JIE-WU, ZHOU YU-MEI, QING CHENG-RUI <br/><p>The iteration method for solving the free-boundary magnetic surface equation with conducting shells has been generalized to the case of infinite region with external currents and without conducting shells. In order to do this a coordinate transformation of the form x′=x/(1+x) is carried out which enables to get a sufficient accuracy inthe region of plasmas while the meshes in the region of vacuum would not be increased. After restricting the radial region of the plasma currents the iteraction series described in [1] can be used to find the equilibrium solution of magnetic surface equation. The numerical solution of this equation in one dimension is obtained and compared with the result obtained analytically. The method described above can effectively be used in cases of two-dimension without difficulties.</p> <br/>Acta Physica Sinica. 1980 29(8): 1058-1062. Published 1980-04-05 A NEW METHOD FOR SOLVING THE FREE-BOUNDARG MAGNETIC SURFACE EQUATION WITHOUT CONDUCTING SHELLS SHEN JIE-WU, ZHOU YU-MEI, QING CHENG-RUI 1980-04-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1980 29(8): 1058-1062. article doi:10.7498/aps.29.1058 10.7498/aps.29.1058 Acta Physica Sinica 29 8 1980-04-05 //www.getgobooth.com/en/article/doi/10.7498/aps.29.1058 1058-1062 <![CDATA[HIGH PRESSURE EQUATION OF STATE AND PHASE TRANSFORMATION OF LilO<sub<3</sub<]]> //www.getgobooth.com/en/article/doi/10.7498/aps.29.1063 Author(s): XU JI-AN, WANG YAN-YUN, XU MIN-HUA <br/><p>The equation of state of α and β-LiIO3 is measured by the piston-cylinder technique, we find that the pressed β-LiIO3 can transform to α-phase after stay for an enough long time in the air.</p> <br/>Acta Physica Sinica. 1980 29(8): 1063-1067. Published 1980-04-05 Author(s): XU JI-AN, WANG YAN-YUN, XU MIN-HUA <br/><p>The equation of state of α and β-LiIO3 is measured by the piston-cylinder technique, we find that the pressed β-LiIO3 can transform to α-phase after stay for an enough long time in the air.</p> <br/>Acta Physica Sinica. 1980 29(8): 1063-1067. Published 1980-04-05 HIGH PRESSURE EQUATION OF STATE AND PHASE TRANSFORMATION OF LilO&lt;sub&lt;3&lt;/sub&lt; XU JI-AN, WANG YAN-YUN, XU MIN-HUA 1980-04-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1980 29(8): 1063-1067. article doi:10.7498/aps.29.1063 10.7498/aps.29.1063 Acta Physica Sinica 29 8 1980-04-05 //www.getgobooth.com/en/article/doi/10.7498/aps.29.1063 1063-1067 <![CDATA[INVESTIGATION OF THE SOLID SOLUTIONS IN ALKALI- METAL IODATE PSEUDO-BINARY SYSTEMS]]> //www.getgobooth.com/en/article/doi/10.7498/aps.29.1068 Author(s): TANG DI-SHENG, CHE GUANG-CAN, TIAN JING-HUA <br/><p>Among the 21 pseudo-binary systems formed by alkali-metal iodates (including HIO3 and NH4IO3), there are 9 in which compounds can be synthesized in aqueous solutions or by powder-sintering, 6 which are mixtures of the constituents; and the rest of the systems can formed continuous solid solutions. The pseudo-binary systems KIO3-NHJO3, RbIO3 etc. were studied by means of thermal analysis (DTA, TG) and Xray diffraction, and were found to be of continuous solid solutions. With addtion of KIO3 or RbIO3, the phase transition temperature of NH4IO3 is decreased and its decomposition (at the same time burning) temperature is raised; the room temperature phase of NH4IO3 (monoclinic) is transformed gradually into cubic phase with increasing content of KIO3 or RbIO3. Samples in the binary systems with NH4IO3 as a component exhibit good pyroelectric property. In this paper, the stability and the change of lattice parameter with compositions of the solid solutions that were found in alkalimetal iodate binary systems were also discussed.</p> <br/>Acta Physica Sinica. 1980 29(8): 1068-1074. Published 1980-04-05 Author(s): TANG DI-SHENG, CHE GUANG-CAN, TIAN JING-HUA <br/><p>Among the 21 pseudo-binary systems formed by alkali-metal iodates (including HIO3 and NH4IO3), there are 9 in which compounds can be synthesized in aqueous solutions or by powder-sintering, 6 which are mixtures of the constituents; and the rest of the systems can formed continuous solid solutions. The pseudo-binary systems KIO3-NHJO3, RbIO3 etc. were studied by means of thermal analysis (DTA, TG) and Xray diffraction, and were found to be of continuous solid solutions. With addtion of KIO3 or RbIO3, the phase transition temperature of NH4IO3 is decreased and its decomposition (at the same time burning) temperature is raised; the room temperature phase of NH4IO3 (monoclinic) is transformed gradually into cubic phase with increasing content of KIO3 or RbIO3. Samples in the binary systems with NH4IO3 as a component exhibit good pyroelectric property. In this paper, the stability and the change of lattice parameter with compositions of the solid solutions that were found in alkalimetal iodate binary systems were also discussed.</p> <br/>Acta Physica Sinica. 1980 29(8): 1068-1074. Published 1980-04-05 INVESTIGATION OF THE SOLID SOLUTIONS IN ALKALI- METAL IODATE PSEUDO-BINARY SYSTEMS TANG DI-SHENG, CHE GUANG-CAN, TIAN JING-HUA 1980-04-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1980 29(8): 1068-1074. article doi:10.7498/aps.29.1068 10.7498/aps.29.1068 Acta Physica Sinica 29 8 1980-04-05 //www.getgobooth.com/en/article/doi/10.7498/aps.29.1068 1068-1074 <![CDATA[CRYSTAL GROWTH, MORPHOLOGY AND OPTICAL PROPERTY OF COMPLEX SALT KIO<sub<3</sub< 2LiIO<sub<3</sub<]]> //www.getgobooth.com/en/article/doi/10.7498/aps.29.1075 Author(s): HU BO-QING, MA WEN-YI, ZHOU TANG <br/><p>The growth condition of the complex crystal KIO3·LiIO3 and its infrared spectra have been investigated. The morphology of the crystal has been determined. Its class is 2/m. The parameters of its cell are a = 11.189, b = 11.038, c = 8.262, β = 111°27′. The position of the optical indicatoid for the crystal, the refraction indices in the range of visible light and their Sellmeier's equations have been given.</p> <br/>Acta Physica Sinica. 1980 29(8): 1075-1079. Published 1980-04-05 Author(s): HU BO-QING, MA WEN-YI, ZHOU TANG <br/><p>The growth condition of the complex crystal KIO3·LiIO3 and its infrared spectra have been investigated. The morphology of the crystal has been determined. Its class is 2/m. The parameters of its cell are a = 11.189, b = 11.038, c = 8.262, β = 111°27′. The position of the optical indicatoid for the crystal, the refraction indices in the range of visible light and their Sellmeier's equations have been given.</p> <br/>Acta Physica Sinica. 1980 29(8): 1075-1079. Published 1980-04-05 CRYSTAL GROWTH, MORPHOLOGY AND OPTICAL PROPERTY OF COMPLEX SALT KIO&lt;sub&lt;3&lt;/sub&lt; 2LiIO&lt;sub&lt;3&lt;/sub&lt; HU BO-QING, MA WEN-YI, ZHOU TANG 1980-04-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1980 29(8): 1075-1079. article doi:10.7498/aps.29.1075 10.7498/aps.29.1075 Acta Physica Sinica 29 8 1980-04-05 //www.getgobooth.com/en/article/doi/10.7498/aps.29.1075 1075-1079 <![CDATA[CRITERION OF PRIMITIVE SOLUTIONS IN THE AUTOMATIC INDEXING OF ELECTRON DIFFRACTION PATTERNS]]> //www.getgobooth.com/en/article/doi/10.7498/aps.29.1080 Author(s): GOU KE-XIN, LIU PING <br/><p>Electron diffraction patterns can be automatically indexed by comparing two nearest diffraction spots with two calculated reciprocal vectors r1* and r2*2, r1*×r2*= Au. However, non-primitive solutions corresponding to non-primitive reciprocal plane cells, sometimes result. For simple Bravais lattices, obviously A=1 is the criterion of primitive solutions. For primitive solutions in centred Bravais lattices, it has been shown that A has also specified values for various combinations of u, v, w indices.</p> <br/>Acta Physica Sinica. 1980 29(8): 1080-1083. Published 1980-04-05 Author(s): GOU KE-XIN, LIU PING <br/><p>Electron diffraction patterns can be automatically indexed by comparing two nearest diffraction spots with two calculated reciprocal vectors r1* and r2*2, r1*×r2*= Au. However, non-primitive solutions corresponding to non-primitive reciprocal plane cells, sometimes result. For simple Bravais lattices, obviously A=1 is the criterion of primitive solutions. For primitive solutions in centred Bravais lattices, it has been shown that A has also specified values for various combinations of u, v, w indices.</p> <br/>Acta Physica Sinica. 1980 29(8): 1080-1083. Published 1980-04-05 CRITERION OF PRIMITIVE SOLUTIONS IN THE AUTOMATIC INDEXING OF ELECTRON DIFFRACTION PATTERNS GOU KE-XIN, LIU PING 1980-04-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1980 29(8): 1080-1083. article doi:10.7498/aps.29.1080 10.7498/aps.29.1080 Acta Physica Sinica 29 8 1980-04-05 //www.getgobooth.com/en/article/doi/10.7498/aps.29.1080 1080-1083 <![CDATA[QUANTUM MECHANICAL TREATMENT OF A DAMPED HARMONIC OSCILLATOR]]> //www.getgobooth.com/en/article/doi/10.7498/aps.29.1084 Author(s): PENG HUAN-WU <br/><p>Assuming a damping force proportional to the velocity, it is shown that the usual quantum condition between the physical variables, namely the displacement and the momentum, has to be modified by the damping. However, it is possible to change to new variables which are canonical. Then we can apply the usual quantum mechanics and use the usual physical interpretation through the statistical average values. The case of a one-dimensional damped harmonic oscillator under the action of an arbitrary external force has been worked out as an example. No difficulty arises and the results are reasonable.</p> <br/>Acta Physica Sinica. 1980 29(8): 1084-1089. Published 1980-04-05 Author(s): PENG HUAN-WU <br/><p>Assuming a damping force proportional to the velocity, it is shown that the usual quantum condition between the physical variables, namely the displacement and the momentum, has to be modified by the damping. However, it is possible to change to new variables which are canonical. Then we can apply the usual quantum mechanics and use the usual physical interpretation through the statistical average values. The case of a one-dimensional damped harmonic oscillator under the action of an arbitrary external force has been worked out as an example. No difficulty arises and the results are reasonable.</p> <br/>Acta Physica Sinica. 1980 29(8): 1084-1089. Published 1980-04-05 QUANTUM MECHANICAL TREATMENT OF A DAMPED HARMONIC OSCILLATOR PENG HUAN-WU 1980-04-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1980 29(8): 1084-1089. article doi:10.7498/aps.29.1084 10.7498/aps.29.1084 Acta Physica Sinica 29 8 1980-04-05 //www.getgobooth.com/en/article/doi/10.7498/aps.29.1084 1084-1089 <![CDATA[FURTHER TEST FOR THE "AN EMPIRICAL RULE FOR SUPERCONDUCTING A-15 TYPE COMPOUNDS"]]> //www.getgobooth.com/en/article/doi/10.7498/aps.29.1090 Author(s): LUO QI-GUANG <br/><p>The author discusses recent experimental results which agree well with predictions given by his previous paper.</p> <br/>Acta Physica Sinica. 1980 29(8): 1090-1092. Published 1980-04-05 Author(s): LUO QI-GUANG <br/><p>The author discusses recent experimental results which agree well with predictions given by his previous paper.</p> <br/>Acta Physica Sinica. 1980 29(8): 1090-1092. Published 1980-04-05 FURTHER TEST FOR THE "AN EMPIRICAL RULE FOR SUPERCONDUCTING A-15 TYPE COMPOUNDS" LUO QI-GUANG 1980-04-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1980 29(8): 1090-1092. article doi:10.7498/aps.29.1090 10.7498/aps.29.1090 Acta Physica Sinica 29 8 1980-04-05 //www.getgobooth.com/en/article/doi/10.7498/aps.29.1090 1090-1092
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