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MAGNETIC FIELD AND TEMPERATURE DEPENDENCE OF THE PROPERTIES OF A MAGNETOPOLARON
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作者 王友棠 贡国林 顾世洧 《Journal of Shanghai Jiaotong university(Science)》 EI 1997年第2期14-21,共8页
Taking into account the interaction of an electron with both bulk longitudinaloptical (LO) and interfaceoptical(IO) phonons, we investigate the magnetic field and temperature dependence of the properties of a magnetop... Taking into account the interaction of an electron with both bulk longitudinaloptical (LO) and interfaceoptical(IO) phonons, we investigate the magnetic field and temperature dependence of the properties of a magnetopolaron at the interface of polarpolar crystals in an external magnetic field by using the generalized Haga perturbation method. The results reveal that as the magnetic field B is lower than critical strengths BCL and BCI, the selftrapping of the interface magnetopolaron weakens with increasing temperature, but it strengthens with the rising temperature when B is higher than BCL and BCI. The effect of temperature becomes striking while B is close to BCL or BCI. The results also show that the farther from the interface the electron, the more markedly the electronLO phonon interction changes with the variation of temperature. On the other hand, the nearer from the interface the electron, the more distinctly the electronIO phonon interaction changes with varying temperature. 展开更多
关键词 electronphonon INTERACTION MAGNETOPOLARON TEMPERATURE and MAGNETIC FIELD DEPENDENCE
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零温极性-极性晶体中界面磁极化子的性质
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作者 王友棠 胡泽 +1 位作者 贡国林 顾世洧 《上海交通大学学报》 EI CAS CSCD 北大核心 1994年第6期19-25,共7页
计入电子与纵光学(LO)声子和界面光学(IO)声子的互作用,进一步研究了界面磁极化子的性质,并给出了磁极化子的能级,重整化回旋质量和自陷能的表达式.结果表明,重整化回旋质量也依赖于纵向量子态和磁场强度;而自陷能也与横... 计入电子与纵光学(LO)声子和界面光学(IO)声子的互作用,进一步研究了界面磁极化子的性质,并给出了磁极化子的能级,重整化回旋质量和自陷能的表达式.结果表明,重整化回旋质量也依赖于纵向量子态和磁场强度;而自陷能也与横向量子态和磁场强度有关. 展开更多
关键词 极化子 界面磁极化子 极性-极性晶体
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