//m.getgobooth.com/ 必威体育下载 daily 15 2024-10-24 17:40:05 apsoffice@iphy.ac.cn apsoffice@iphy.ac.cn 2024-10-24 17:40:05 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 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1529 Author(s): WANG WAN-LU, LIAO KE-JUN <br/><p>We have found experimentally that the stress in a-Si:H films is Compressive, and tensile in a-SiNx:H film on the flate silicon substrate with certain content of Si-H bond. The stress in a-Si:H/a-SiNx:H/c-Si system can be made to reach a minimum by suitably chosing some conditions of depositing. The minimum stress may keep for a long time. It is shown that the stress changes with annealing temperature. Some explanation to these results are also given.</p> <br/>Acta Physica Sinica. 1987 36(12): 1529-1537. Published 1987-06-05 Author(s): WANG WAN-LU, LIAO KE-JUN <br/><p>We have found experimentally that the stress in a-Si:H films is Compressive, and tensile in a-SiNx:H film on the flate silicon substrate with certain content of Si-H bond. The stress in a-Si:H/a-SiNx:H/c-Si system can be made to reach a minimum by suitably chosing some conditions of depositing. The minimum stress may keep for a long time. It is shown that the stress changes with annealing temperature. Some explanation to these results are also given.</p> <br/>Acta Physica Sinica. 1987 36(12): 1529-1537. Published 1987-06-05 STRESS STUDIES OF AMORPHOUS a-Si:H/a-SiNx:H HETEROJUNCTIONS AND a-Si:H, a-SiNx:H FILMS WANG WAN-LU, LIAO KE-JUN 1987-06-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1987 36(12): 1529-1537. article doi:10.7498/aps.36.1529 10.7498/aps.36.1529 Acta Physica Sinica 36 12 1987-06-05 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1529 1529-1537 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1538 Author(s): ZHANG PEI-XIAN, YAO JIE, PENG SHAO-QI <br/><p>The studies for detects compensation and doping of LPCVD grown a-Si materials have been made by ESR, σD, σph, SIMS and Eα measurements. It is found that these materials can still be doped, although with no detectable hydrogen content. In particalar, the films can be doped effectually, and the Fermi level can be moved obviously toward the band edge in the heavily doped zone. In this paper, based on the new point of view about a-Si doping presented by Street recently, the mechanism for a-Si doping without hydrogen is explained in terms of defect compensation and chemical coordination.</p> <br/>Acta Physica Sinica. 1987 36(12): 1538-1544. Published 1987-06-05 Author(s): ZHANG PEI-XIAN, YAO JIE, PENG SHAO-QI <br/><p>The studies for detects compensation and doping of LPCVD grown a-Si materials have been made by ESR, σD, σph, SIMS and Eα measurements. It is found that these materials can still be doped, although with no detectable hydrogen content. In particalar, the films can be doped effectually, and the Fermi level can be moved obviously toward the band edge in the heavily doped zone. In this paper, based on the new point of view about a-Si doping presented by Street recently, the mechanism for a-Si doping without hydrogen is explained in terms of defect compensation and chemical coordination.</p> <br/>Acta Physica Sinica. 1987 36(12): 1538-1544. Published 1987-06-05 THE COMPENSATION OF DEFECTS AND DOPING IN LPCVD a-Si FILMS ZHANG PEI-XIAN, YAO JIE, PENG SHAO-QI 1987-06-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1987 36(12): 1538-1544. article doi:10.7498/aps.36.1538 10.7498/aps.36.1538 Acta Physica Sinica 36 12 1987-06-05 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1538 1538-1544 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1545 Author(s): DING YAO-GUO, LIN ZHANG-DA, QI SHANG-XUB, WANG YIN-JUN, QIAN JING-FANG <br/><p>The interfaces between CoO and Fe2O3 films have been studied, the results show that the simple CoO-γ-Fe2O3 interface has practically no effects on magnetic properties, and that the "complicated diffused interfaces" is anlikely to be the major factor in the enhancement of coercive force as previously believed. The Hc enhancement is likely to be a body effect caused by Co-doping rather than an effect of interfaces.</p> <br/>Acta Physica Sinica. 1987 36(12): 1545-1550. Published 1987-06-05 Author(s): DING YAO-GUO, LIN ZHANG-DA, QI SHANG-XUB, WANG YIN-JUN, QIAN JING-FANG <br/><p>The interfaces between CoO and Fe2O3 films have been studied, the results show that the simple CoO-γ-Fe2O3 interface has practically no effects on magnetic properties, and that the "complicated diffused interfaces" is anlikely to be the major factor in the enhancement of coercive force as previously believed. The Hc enhancement is likely to be a body effect caused by Co-doping rather than an effect of interfaces.</p> <br/>Acta Physica Sinica. 1987 36(12): 1545-1550. Published 1987-06-05 A STUDY OF INTERFACES OF Co-TREATED γ-Fe2O3 THIN FILMS DING YAO-GUO, LIN ZHANG-DA, QI SHANG-XUB, WANG YIN-JUN, QIAN JING-FANG 1987-06-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1987 36(12): 1545-1550. article doi:10.7498/aps.36.1545 10.7498/aps.36.1545 Acta Physica Sinica 36 12 1987-06-05 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1545 1545-1550 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1551 Author(s): LIU WEN, HUANG SHENG-TAO, TANG CHENG-HUANG, XU GUO-SHU <br/><p>The structure change of Cu55Zr45 metallic glass during natural and artificial ageing was investigated with EXAFS method. For comparison, the structure of quenched specimen was also determined. The corresponding phenomena after the specimen was aged artificially was studied with the small angle X-ray scattering and DSC, which are suitable for observing structure relaxation. Finally, according to the facts observed, a model of phase separation was suggested to explain the EXAFS of the specimens and their change during ageing.</p> <br/>Acta Physica Sinica. 1987 36(12): 1551-1556. Published 1987-06-05 Author(s): LIU WEN, HUANG SHENG-TAO, TANG CHENG-HUANG, XU GUO-SHU <br/><p>The structure change of Cu55Zr45 metallic glass during natural and artificial ageing was investigated with EXAFS method. For comparison, the structure of quenched specimen was also determined. The corresponding phenomena after the specimen was aged artificially was studied with the small angle X-ray scattering and DSC, which are suitable for observing structure relaxation. Finally, according to the facts observed, a model of phase separation was suggested to explain the EXAFS of the specimens and their change during ageing.</p> <br/>Acta Physica Sinica. 1987 36(12): 1551-1556. Published 1987-06-05 AN EXAFS STUDY FOR STRUCTURE RELAXATION OF Cu55Zr45 METALLIC GLASS DURING NATURAL AND ARTIFICIAL AGEING LIU WEN, HUANG SHENG-TAO, TANG CHENG-HUANG, XU GUO-SHU 1987-06-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1987 36(12): 1551-1556. article doi:10.7498/aps.36.1551 10.7498/aps.36.1551 Acta Physica Sinica 36 12 1987-06-05 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1551 1551-1556 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1557 Author(s): CUI HUA, YUAN QI-HUA, CUI WAN-QIU <br/><p>In this paper, the ionic conduction in the glass system AlF3-K2NbOF5 have been studied. The structure of glasses is also primarily established by Raman spectroscopy. The ionic conductivity of glasses is further discussed, based on the change of composition and structure. For glasses in system AlF3-K2NbOF5, when A1F3 content ranges from 21-26 mol%, A13+ and Nb5+ ions are in octahedral coordination, and the ionic conductivity increases with increasing AlF3 content. When A1F3 content reaches 29 mol%, A13+ ions are partly in tetrahedral coordination, and the ionic conductivity decreases. The effect is supposed to be caused by A1F4- ion tetrahedron. Because of the appearance of A1F4- ion tetrahedron, the mobile ion channels are possibly blocked. The ionic conductivity of glasses in this system is 1.045×10-2Ω-1·cm-1.at 194℃.</p> <br/>Acta Physica Sinica. 1987 36(12): 1557-1563. Published 1987-06-05 Author(s): CUI HUA, YUAN QI-HUA, CUI WAN-QIU <br/><p>In this paper, the ionic conduction in the glass system AlF3-K2NbOF5 have been studied. The structure of glasses is also primarily established by Raman spectroscopy. The ionic conductivity of glasses is further discussed, based on the change of composition and structure. For glasses in system AlF3-K2NbOF5, when A1F3 content ranges from 21-26 mol%, A13+ and Nb5+ ions are in octahedral coordination, and the ionic conductivity increases with increasing AlF3 content. When A1F3 content reaches 29 mol%, A13+ ions are partly in tetrahedral coordination, and the ionic conductivity decreases. The effect is supposed to be caused by A1F4- ion tetrahedron. Because of the appearance of A1F4- ion tetrahedron, the mobile ion channels are possibly blocked. The ionic conductivity of glasses in this system is 1.045×10-2Ω-1·cm-1.at 194℃.</p> <br/>Acta Physica Sinica. 1987 36(12): 1557-1563. Published 1987-06-05 A STUDY ON STRUCTURE AND ELECTRICAL PROPERTY OF AMORPHOUS MATERIALS IN SYSTEM AlF3-K2NbOF5 CUI HUA, YUAN QI-HUA, CUI WAN-QIU 1987-06-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1987 36(12): 1557-1563. article doi:10.7498/aps.36.1557 10.7498/aps.36.1557 Acta Physica Sinica 36 12 1987-06-05 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1557 1557-1563 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1564 Author(s): JIN WEI-GUO, ZHAO GUO-QING, SHAO QI-YUN, REN YUE-HUA, WU XIANG-JIAN, ZHOU ZHU-YING <br/><p>The (111) planar blocking effect is used to measure the lifetime of the 27Al(p, α)24Mg resonant reaction at Ep=1565keV and analytical methods is used to deduce the lifetime. The (111) planar blocking dip of the Ep=1183.4 keV resonance in the 27Al(p,α)24Mg reaction is also measured and compared with that calculated by theoretical calculations. The obtained lifetime τ=17.9-4.0+4.4 as is in good agreement with that obtained by the〈110〉axial blocking effect and that reported in the literature within the range of errors.</p> <br/>Acta Physica Sinica. 1987 36(12): 1564-1569. Published 1987-06-05 Author(s): JIN WEI-GUO, ZHAO GUO-QING, SHAO QI-YUN, REN YUE-HUA, WU XIANG-JIAN, ZHOU ZHU-YING <br/><p>The (111) planar blocking effect is used to measure the lifetime of the 27Al(p, α)24Mg resonant reaction at Ep=1565keV and analytical methods is used to deduce the lifetime. The (111) planar blocking dip of the Ep=1183.4 keV resonance in the 27Al(p,α)24Mg reaction is also measured and compared with that calculated by theoretical calculations. The obtained lifetime τ=17.9-4.0+4.4 as is in good agreement with that obtained by the〈110〉axial blocking effect and that reported in the literature within the range of errors.</p> <br/>Acta Physica Sinica. 1987 36(12): 1564-1569. Published 1987-06-05 THE LIFETIME MEASUREMENT OF THE 27Al(p,a)24Mg RESONANT REACTION AT ∑p = 1565 keV BY THE PLANAR BLOCKING EFFECT JIN WEI-GUO, ZHAO GUO-QING, SHAO QI-YUN, REN YUE-HUA, WU XIANG-JIAN, ZHOU ZHU-YING 1987-06-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1987 36(12): 1564-1569. article doi:10.7498/aps.36.1564 10.7498/aps.36.1564 Acta Physica Sinica 36 12 1987-06-05 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1564 1564-1569 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1570 Author(s): LI FANG-YU, TANG MENG-XI <br/><p>This paper touches upon gravitational radiant power and radiant angle distribution of space rectangular lattice arrays of mass quadrupole oscillators, and gives analytic expression. The calculation show that these arrays can generate narrow gravitational radiation wave beam which has the best directional property. The travelling wave typegravitational radiation theory, developed by Seki and his colleagues, may be regarded as a specific case of the work in this paper and can be derived naturally. Under the codition of ideal ultrahigh frequency acoustic resonance and perfect travelling wave type synchronism intensification, an numerical example calculated with our method shows that energy flux density of gravitational radiation of optimum direction of space array which consists of 100 CaS crystals of 30×30×0.03 cm3 would amount to 2.84×10-1 erg/cm2·s. This result shows the potentiality of crystal space arrays exciting high-frequency gravitational radiation.</p> <br/>Acta Physica Sinica. 1987 36(12): 1570-1582. Published 1987-06-05 Author(s): LI FANG-YU, TANG MENG-XI <br/><p>This paper touches upon gravitational radiant power and radiant angle distribution of space rectangular lattice arrays of mass quadrupole oscillators, and gives analytic expression. The calculation show that these arrays can generate narrow gravitational radiation wave beam which has the best directional property. The travelling wave typegravitational radiation theory, developed by Seki and his colleagues, may be regarded as a specific case of the work in this paper and can be derived naturally. Under the codition of ideal ultrahigh frequency acoustic resonance and perfect travelling wave type synchronism intensification, an numerical example calculated with our method shows that energy flux density of gravitational radiation of optimum direction of space array which consists of 100 CaS crystals of 30×30×0.03 cm3 would amount to 2.84×10-1 erg/cm2·s. This result shows the potentiality of crystal space arrays exciting high-frequency gravitational radiation.</p> <br/>Acta Physica Sinica. 1987 36(12): 1570-1582. Published 1987-06-05 NARROW WAVE BEAM-TYPE GRAVITATIONAL RADIATION OF SPACE ARRAYS LI FANG-YU, TANG MENG-XI 1987-06-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1987 36(12): 1570-1582. article doi:10.7498/aps.36.1570 10.7498/aps.36.1570 Acta Physica Sinica 36 12 1987-06-05 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1570 1570-1582 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1583 Author(s): WENG JIA-QIANG, KONG LING-JIANG, CHEN GUANG-ZHI <br/><p>We demonstrate that topological entropy is equivalent on the whole subregion of RLm, We also show that the high-order chaotic bands give no contribution to topological entropy in these tubregions.</p> <br/>Acta Physica Sinica. 1987 36(12): 1583-1589. Published 1987-06-05 Author(s): WENG JIA-QIANG, KONG LING-JIANG, CHEN GUANG-ZHI <br/><p>We demonstrate that topological entropy is equivalent on the whole subregion of RLm, We also show that the high-order chaotic bands give no contribution to topological entropy in these tubregions.</p> <br/>Acta Physica Sinica. 1987 36(12): 1583-1589. Published 1987-06-05 A PROOF ON THE EQUIVALENCE OF TOPOLOGICAL ENTROPY AT SUBREGION WINDOW OF RLm WENG JIA-QIANG, KONG LING-JIANG, CHEN GUANG-ZHI 1987-06-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1987 36(12): 1583-1589. article doi:10.7498/aps.36.1583 10.7498/aps.36.1583 Acta Physica Sinica 36 12 1987-06-05 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1583 1583-1589 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1590 Author(s): XU JI-HAI <br/><p>The phenomena of the heavy-fermion superconductivity (HFS) of CeCu2Si2 and UBe13 were theoretically inveotigated by starting from the periodic Anderson lattice model and considering the interaction between the localized electrons and the localized lattice deformation. Throngh the calculations, we obtained a reasonable superconducting transition temperature Tc and showed that the parameter which describes the isotopic effect a&lt;1/2, even equals to zero (in BCS theory a = 1/2). We showed that the isotopic effect is smaller in our theory than that in BCS theory, even there could exist no isotopic effect in our model, the result is in agreement with the experimental facts of HFS. In addition, the curves of the order parameters varing with the temperature and the density of state are given and the conclusion of f-electrons to be responsible for HFS can be obtained naturally.</p> <br/>Acta Physica Sinica. 1987 36(12): 1590-1597. Published 1987-06-05 Author(s): XU JI-HAI <br/><p>The phenomena of the heavy-fermion superconductivity (HFS) of CeCu2Si2 and UBe13 were theoretically inveotigated by starting from the periodic Anderson lattice model and considering the interaction between the localized electrons and the localized lattice deformation. Throngh the calculations, we obtained a reasonable superconducting transition temperature Tc and showed that the parameter which describes the isotopic effect a&lt;1/2, even equals to zero (in BCS theory a = 1/2). We showed that the isotopic effect is smaller in our theory than that in BCS theory, even there could exist no isotopic effect in our model, the result is in agreement with the experimental facts of HFS. In addition, the curves of the order parameters varing with the temperature and the density of state are given and the conclusion of f-electrons to be responsible for HFS can be obtained naturally.</p> <br/>Acta Physica Sinica. 1987 36(12): 1590-1597. Published 1987-06-05 THE THEORY OF SUPERCONDUCTIVITY IN CeCu2Si2 AND UBe13 (Ⅰ)——MODEL, Tc AND ORDER PARAMETERS XU JI-HAI 1987-06-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1987 36(12): 1590-1597. article doi:10.7498/aps.36.1590 10.7498/aps.36.1590 Acta Physica Sinica 36 12 1987-06-05 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1590 1590-1597 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1598 Author(s): GUO SHI-CHONG, SHEN JIE-WU, CAI SHI-DONG <br/><p>The kinetic effects of magnetic drift resonance on the drift cyclotron loss cone instability (DCLC) are studied in detail both analytically and numerically. It is found that the effects of inhomogeneous magnetic field in high β plasmas are important, the kinetic resonance act as a dissipative effect, which can enhance the instability and broaden the unstable region of negative energy DCLC mode. Finite β effects do not play the stabilization role predicted by the theories under the fluid approximation.</p> <br/>Acta Physica Sinica. 1987 36(12): 1598-1609. Published 1987-06-05 Author(s): GUO SHI-CHONG, SHEN JIE-WU, CAI SHI-DONG <br/><p>The kinetic effects of magnetic drift resonance on the drift cyclotron loss cone instability (DCLC) are studied in detail both analytically and numerically. It is found that the effects of inhomogeneous magnetic field in high β plasmas are important, the kinetic resonance act as a dissipative effect, which can enhance the instability and broaden the unstable region of negative energy DCLC mode. Finite β effects do not play the stabilization role predicted by the theories under the fluid approximation.</p> <br/>Acta Physica Sinica. 1987 36(12): 1598-1609. Published 1987-06-05 THE KINETIC DRIFT CYCLOTRON LOSS CONE INSTABILITIES IN AN INHOMOGENEOUS MEGNETIC FIELD GUO SHI-CHONG, SHEN JIE-WU, CAI SHI-DONG 1987-06-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1987 36(12): 1598-1609. article doi:10.7498/aps.36.1598 10.7498/aps.36.1598 Acta Physica Sinica 36 12 1987-06-05 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1598 1598-1609 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1610 Author(s): YANG JI-LIAN, ZHANG BAI-SHENG, XU ZHI-JIANG, ZHOU HUI-MING, JIN LAN, YE CHUN-TANG, YU MEI, ZHOU ZENG-JUN <br/><p>Mn-Zn ferrite was used extensively in a variety of communications. The frequency range is from several hundreds kHz to several MHz. But in the range of -40-80℃ the temperature coefficient of the permeability of the pure Mn-Zn ferrite is rather high which makes the working frequency to drift a little. This causes some trouble in use. In order to improve μ(T) curve, a variety of elements were taken to add to the Mn-Zn ferrite. It has been found out that the μ(T) curve is improved efficiently by adding only a small amount of titanium to the Mn-Zn ferrite. In order to understand the effect of titanium in the material, the neutron diffraction structure analysis of Mn-Zn ferrite containing titanium was carried out. The experimental results show that Ti atom occupies B site, Mn and Zn occupy A site preferentially. In addition the magnetic moment per molcule was also measured. The results are discussed preliminarily.</p> <br/>Acta Physica Sinica. 1987 36(12): 1610-1613. Published 1987-06-05 Author(s): YANG JI-LIAN, ZHANG BAI-SHENG, XU ZHI-JIANG, ZHOU HUI-MING, JIN LAN, YE CHUN-TANG, YU MEI, ZHOU ZENG-JUN <br/><p>Mn-Zn ferrite was used extensively in a variety of communications. The frequency range is from several hundreds kHz to several MHz. But in the range of -40-80℃ the temperature coefficient of the permeability of the pure Mn-Zn ferrite is rather high which makes the working frequency to drift a little. This causes some trouble in use. In order to improve μ(T) curve, a variety of elements were taken to add to the Mn-Zn ferrite. It has been found out that the μ(T) curve is improved efficiently by adding only a small amount of titanium to the Mn-Zn ferrite. In order to understand the effect of titanium in the material, the neutron diffraction structure analysis of Mn-Zn ferrite containing titanium was carried out. The experimental results show that Ti atom occupies B site, Mn and Zn occupy A site preferentially. In addition the magnetic moment per molcule was also measured. The results are discussed preliminarily.</p> <br/>Acta Physica Sinica. 1987 36(12): 1610-1613. Published 1987-06-05 NEUTRON DIFFRACTION STUDY OF Mn-Zn FERRITE CONTAINING TITANIUM YANG JI-LIAN, ZHANG BAI-SHENG, XU ZHI-JIANG, ZHOU HUI-MING, JIN LAN, YE CHUN-TANG, YU MEI, ZHOU ZENG-JUN 1987-06-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1987 36(12): 1610-1613. article doi:10.7498/aps.36.1610 10.7498/aps.36.1610 Acta Physica Sinica 36 12 1987-06-05 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1610 1610-1613 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1614 Author(s): HU REN-YUAN <br/><p>By means of Xe ion implantation as a diffusion marker, we have deterinined that Si is the dominant diffusion element in the formation of TiSi2 thin film. Applying the equation of Kioson and Tu with the result of our experiment, diffusion coefficients of Si and Ti in forming TiSi2 at 600℃ has been calculated.</p> <br/>Acta Physica Sinica. 1987 36(12): 1614-1617. Published 1987-06-05 Author(s): HU REN-YUAN <br/><p>By means of Xe ion implantation as a diffusion marker, we have deterinined that Si is the dominant diffusion element in the formation of TiSi2 thin film. Applying the equation of Kioson and Tu with the result of our experiment, diffusion coefficients of Si and Ti in forming TiSi2 at 600℃ has been calculated.</p> <br/>Acta Physica Sinica. 1987 36(12): 1614-1617. Published 1987-06-05 INVESTIGATION OF DIFFUSION MARKER IN THE FORMATION OF TiSi2 THIN FILMS HU REN-YUAN 1987-06-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1987 36(12): 1614-1617. article doi:10.7498/aps.36.1614 10.7498/aps.36.1614 Acta Physica Sinica 36 12 1987-06-05 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1614 1614-1617 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1618 Author(s): WU ZI-YU, WANG KE-LIN, LAN HUI-BIN, ZHANG ZHENG-GANG, XIAN DING-CHANG <br/><p>The physical space-like electromagnetic form factor has been calculated directly from the Euclidean 0- meson wave functions solved for the flat bottom potential in the Euclidean space. Numerical results show that the theoretical calculation may be in accordance with experiment by appropriately choosing the parameters.</p> <br/>Acta Physica Sinica. 1987 36(12): 1618-1623. Published 1987-06-05 Author(s): WU ZI-YU, WANG KE-LIN, LAN HUI-BIN, ZHANG ZHENG-GANG, XIAN DING-CHANG <br/><p>The physical space-like electromagnetic form factor has been calculated directly from the Euclidean 0- meson wave functions solved for the flat bottom potential in the Euclidean space. Numerical results show that the theoretical calculation may be in accordance with experiment by appropriately choosing the parameters.</p> <br/>Acta Physica Sinica. 1987 36(12): 1618-1623. Published 1987-06-05 A PHENOMENOLOGICAL MODEL FOR 0- MESON (Ⅱ)——THE ELECTROMAGNETIC FORM FACTOR WU ZI-YU, WANG KE-LIN, LAN HUI-BIN, ZHANG ZHENG-GANG, XIAN DING-CHANG 1987-06-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1987 36(12): 1618-1623. article doi:10.7498/aps.36.1618 10.7498/aps.36.1618 Acta Physica Sinica 36 12 1987-06-05 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1618 1618-1623 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1624 Author(s): HE XING-FEI, MO DANG <br/><p>We demonstrate that the interhand dielectric function and its k-th derivative spectrum near an n-dimensional critical point can be evaluated from the harmonic oscillator dielectric function and its k-th derivative spectrum, respectively, by using n/2-fold integration. The physical characteristics of harmonic oscillator in the interband spectra of an n-dimensional solid are exhibited by the action of n/2-fold integral operator. Relations between interband transitions and harmonic oscillator model, and between optical properties and dimensionality are discussed. In the fractional integral expressions for the interband optical responses, dimensionality n can be generated to an arbitrary continuous parameter.</p> <br/>Acta Physica Sinica. 1987 36(12): 1624-1629. Published 1987-06-05 Author(s): HE XING-FEI, MO DANG <br/><p>We demonstrate that the interhand dielectric function and its k-th derivative spectrum near an n-dimensional critical point can be evaluated from the harmonic oscillator dielectric function and its k-th derivative spectrum, respectively, by using n/2-fold integration. The physical characteristics of harmonic oscillator in the interband spectra of an n-dimensional solid are exhibited by the action of n/2-fold integral operator. Relations between interband transitions and harmonic oscillator model, and between optical properties and dimensionality are discussed. In the fractional integral expressions for the interband optical responses, dimensionality n can be generated to an arbitrary continuous parameter.</p> <br/>Acta Physica Sinica. 1987 36(12): 1624-1629. Published 1987-06-05 INTERBAND OPTICAL PROPERTIES OF AN n-DIMENSIONAL SOLID AND HARMONIC OSCILLATOR MODEL THE N/2-FOLD INTEGRAL RELATIONS HE XING-FEI, MO DANG 1987-06-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1987 36(12): 1624-1629. article doi:10.7498/aps.36.1624 10.7498/aps.36.1624 Acta Physica Sinica 36 12 1987-06-05 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1624 1624-1629 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1630 Author(s): XIONG XIAO-MING, ZHOU SHI-XUN <br/><p>Finite cluster system of two dimensional electron gas under a high magnetic field are investigated by numerical diagonalization of the Hamiltonian. Especially for the three Coulomb interacting electron system, the detailed study is presented. The contribution from the uniform neutralizing background is included. Method used in this paper is very simple. The numerical result of the ground state energy at 1/3 filling factor gives good approach to that of the incompressible fluid.</p> <br/>Acta Physica Sinica. 1987 36(12): 1630-1634. Published 1987-06-05 Author(s): XIONG XIAO-MING, ZHOU SHI-XUN <br/><p>Finite cluster system of two dimensional electron gas under a high magnetic field are investigated by numerical diagonalization of the Hamiltonian. Especially for the three Coulomb interacting electron system, the detailed study is presented. The contribution from the uniform neutralizing background is included. Method used in this paper is very simple. The numerical result of the ground state energy at 1/3 filling factor gives good approach to that of the incompressible fluid.</p> <br/>Acta Physica Sinica. 1987 36(12): 1630-1634. Published 1987-06-05 FINITE CLUSTER STUDIES OF THE FQHE XIONG XIAO-MING, ZHOU SHI-XUN 1987-06-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1987 36(12): 1630-1634. article doi:10.7498/aps.36.1630 10.7498/aps.36.1630 Acta Physica Sinica 36 12 1987-06-05 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1630 1630-1634 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1635 Author(s): DING SHI-YING, YU ZHENG, SHI KE-XIN <br/><p>A model of non-ideal plane of electron scatter flux pinning is proposed. The spread of △K/K are calculated under this model. Using GL free energy formula, The dependences of flux pinning force on thickness of the plane and impurity of matrix and electron scatter probability are obtained. The results agree well with experimental data qualitatively.</p> <br/>Acta Physica Sinica. 1987 36(12): 1635-1639. Published 1987-06-05 Author(s): DING SHI-YING, YU ZHENG, SHI KE-XIN <br/><p>A model of non-ideal plane of electron scatter flux pinning is proposed. The spread of △K/K are calculated under this model. Using GL free energy formula, The dependences of flux pinning force on thickness of the plane and impurity of matrix and electron scatter probability are obtained. The results agree well with experimental data qualitatively.</p> <br/>Acta Physica Sinica. 1987 36(12): 1635-1639. Published 1987-06-05 THE FLUX PINNING EFFECTS OF NON-IDEAL PLANE ELECTRON SCATTER CENTRE DING SHI-YING, YU ZHENG, SHI KE-XIN 1987-06-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1987 36(12): 1635-1639. article doi:10.7498/aps.36.1635 10.7498/aps.36.1635 Acta Physica Sinica 36 12 1987-06-05 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1635 1635-1639 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1640 Author(s): DING SHI-YING, YU ZHENG, SHI KE-XIN, YAN JIA-LIE <br/><p>Multilayer PbBi/SiO film samples are prepared with alternative vacuum-evaporating method. Their critical currents are measured at various temperatures and in parallel and perpendicular applied magnetic fields. A variety of characteristics of critical current are found.</p> <br/>Acta Physica Sinica. 1987 36(12): 1640-1642. Published 1987-06-05 Author(s): DING SHI-YING, YU ZHENG, SHI KE-XIN, YAN JIA-LIE <br/><p>Multilayer PbBi/SiO film samples are prepared with alternative vacuum-evaporating method. Their critical currents are measured at various temperatures and in parallel and perpendicular applied magnetic fields. A variety of characteristics of critical current are found.</p> <br/>Acta Physica Sinica. 1987 36(12): 1640-1642. Published 1987-06-05 THE CRITICAL CURRENT OF MULTILAYER PbBi/SiO FILMS DING SHI-YING, YU ZHENG, SHI KE-XIN, YAN JIA-LIE 1987-06-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1987 36(12): 1640-1642. article doi:10.7498/aps.36.1640 10.7498/aps.36.1640 Acta Physica Sinica 36 12 1987-06-05 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1640 1640-1642 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1643 Author(s): WANG RUI-LAN, LI HONG-CHENG, GUAN WEI-YAN <br/><p>The superconducting energy gap of heavily doped Re thin films has been measured by electron tunneling of Re/Al2O3/Al junctions. We get △0= (1.04±0.02) meV, 2△0/KTc = 3.31±0.04. The △0 value is determined by the maximum conductance method. It is shown that the energy gap and the Tc of Re films increases many times by impurity, but Re remains a weakly coupled superconductor.</p> <br/>Acta Physica Sinica. 1987 36(12): 1643-1644. Published 1987-06-05 Author(s): WANG RUI-LAN, LI HONG-CHENG, GUAN WEI-YAN <br/><p>The superconducting energy gap of heavily doped Re thin films has been measured by electron tunneling of Re/Al2O3/Al junctions. We get △0= (1.04±0.02) meV, 2△0/KTc = 3.31±0.04. The △0 value is determined by the maximum conductance method. It is shown that the energy gap and the Tc of Re films increases many times by impurity, but Re remains a weakly coupled superconductor.</p> <br/>Acta Physica Sinica. 1987 36(12): 1643-1644. Published 1987-06-05 DETERMINATION OF SUPERCONDUCTING ENERGY GAP OF HEAVILY DOPED Re THIN FILMS BY ELECTRON TUNNELING WANG RUI-LAN, LI HONG-CHENG, GUAN WEI-YAN 1987-06-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1987 36(12): 1643-1644. article doi:10.7498/aps.36.1643 10.7498/aps.36.1643 Acta Physica Sinica 36 12 1987-06-05 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1643 1643-1644 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1645 Author(s): LIU ZHENG-DONG <br/><p>The second-order correlation functions of the stimulated emisson in the case of a three-level cascade atom interacting with radiation fields initially in coherent states or chaotic states are disccused. It is found that there exists photon antibunching.</p> <br/>Acta Physica Sinica. 1987 36(12): 1645-1651. Published 1987-06-05 Author(s): LIU ZHENG-DONG <br/><p>The second-order correlation functions of the stimulated emisson in the case of a three-level cascade atom interacting with radiation fields initially in coherent states or chaotic states are disccused. It is found that there exists photon antibunching.</p> <br/>Acta Physica Sinica. 1987 36(12): 1645-1651. Published 1987-06-05 ANTIBUNCHING OF THE STIMULATED EMISSION FROM A THREE LEVEL CASCADE ATOM LIU ZHENG-DONG 1987-06-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1987 36(12): 1645-1651. article doi:10.7498/aps.36.1645 10.7498/aps.36.1645 Acta Physica Sinica 36 12 1987-06-05 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1645 1645-1651 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1652 Author(s): LI XIAO-SHEN, LIU ZHENG-DONG, GONG CHANG-DE <br/><p>The Schrodinger's equation method is used to investigate the squeezing phenomenon of the electromagnetic field in the case of a three-level cascade atom interacting with single-mode cavity field. The effects of the stimulating strength and the coupling constants on the squeezing phenomenon are discussed. Furthermore, the roles played by the saturation effect and the two-photon process, and the relation between the 1st order coherence and the squeezing effects of the field are revealed.</p> <br/>Acta Physica Sinica. 1987 36(12): 1652-1657. Published 1987-06-05 Author(s): LI XIAO-SHEN, LIU ZHENG-DONG, GONG CHANG-DE <br/><p>The Schrodinger's equation method is used to investigate the squeezing phenomenon of the electromagnetic field in the case of a three-level cascade atom interacting with single-mode cavity field. The effects of the stimulating strength and the coupling constants on the squeezing phenomenon are discussed. Furthermore, the roles played by the saturation effect and the two-photon process, and the relation between the 1st order coherence and the squeezing effects of the field are revealed.</p> <br/>Acta Physica Sinica. 1987 36(12): 1652-1657. Published 1987-06-05 SQUEEZING PHENOMENON IN THE CASCADE TWO-PHOTON PROCESS LI XIAO-SHEN, LIU ZHENG-DONG, GONG CHANG-DE 1987-06-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1987 36(12): 1652-1657. article doi:10.7498/aps.36.1652 10.7498/aps.36.1652 Acta Physica Sinica 36 12 1987-06-05 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1652 1652-1657 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1658 Author(s): JIN HAO-RAN, WANG QING-JI, ZHENG LE-MIN <br/><p>Based on the previous paper[1], in this work we consider the Maxwell's distribution of atomic velocities, study the near degenerate four-wave mixing effect in transverse Zeeman He-Ne laser by using the vector field model and Lamb's semiclassical theory. We give out the formulas of high-order nonlinear effect, explaine theoretically the physical reason of the beat frequency distortion, and have done the numerical calculation by using computer. The results show that the predictions of theory in this paper are in keeping with experimental results.</p> <br/>Acta Physica Sinica. 1987 36(12): 1658-1666. Published 1987-06-05 Author(s): JIN HAO-RAN, WANG QING-JI, ZHENG LE-MIN <br/><p>Based on the previous paper[1], in this work we consider the Maxwell's distribution of atomic velocities, study the near degenerate four-wave mixing effect in transverse Zeeman He-Ne laser by using the vector field model and Lamb's semiclassical theory. We give out the formulas of high-order nonlinear effect, explaine theoretically the physical reason of the beat frequency distortion, and have done the numerical calculation by using computer. The results show that the predictions of theory in this paper are in keeping with experimental results.</p> <br/>Acta Physica Sinica. 1987 36(12): 1658-1666. Published 1987-06-05 THE THEORY OF NONLINEAR FREQUENCY MIXING EFFECT IN TRANSVERSE ZEEMAN He-Ne LASER JIN HAO-RAN, WANG QING-JI, ZHENG LE-MIN 1987-06-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1987 36(12): 1658-1666. article doi:10.7498/aps.36.1658 10.7498/aps.36.1658 Acta Physica Sinica 36 12 1987-06-05 //m.getgobooth.com/en/article/doi/10.7498/aps.36.1658 1658-1666