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| 电子自旋交换作用对极向磁光Kerr效应的影响——能带跃迁模型 | |
| 引用本文： | 周青春,徐荣青,王嘉赋.电子自旋交换作用对极向磁光Kerr效应的影响——能带跃迁模型[J].光子学报,2002,31(7):877-881. |
| 作者姓名： | 周青春 徐荣青 王嘉赋 |
| 作者单位： | 1. 华东船舶工业学院基础学科系,江苏镇江,212003 2. 华东船舶工业学院电子与信息系,江苏镇江,212003 3. 南京大学物理系,江苏南京,210093 |
| 摘 要： | 用微观量子理论和能带跃迁模型,研究了极向磁光Kerr效应对电子自旋交换劈裂能依赖性.结果表明,磁光Kerr转角θK与自旋劈裂能Δ之间仅当Δ很小时才有线性关系;θK的展开式中只出现Δ奇次项而不出现偶次项. |
| 关 键 词： | 自旋交换作用 Kerr效应 能带 磁性 格林函数 |
| 收稿时间： | 2001/10/29 |
| 修稿时间： | 2001年10月29 |
INFLUENCE OF ELECTRON SPIN EXCHANGE SPLITTING ON POLAR MAGNETO-OPTICAL KERR EFFECT |
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| Zhou Qingchun ,Xu Rongqing ,Wang Jiafu Dept.of Basic Courses,East China Shipbuilding Institute,Zhenjiang Dept of Electronics and Information,East China Shipbuilding Institute,Zhenjiang Dept of Physics,Nanjing University,Nanji.INFLUENCE OF ELECTRON SPIN EXCHANGE SPLITTING ON POLAR MAGNETO-OPTICAL KERR EFFECT[J].Acta Photonica Sinica,2002,31(7):877-881. | |
| Authors: | Zhou Qingchun Xu Rongqing Wang Jiafu Deptof Basic Courses East China Shipbuilding Institute Zhenjiang Dept of Electronics and Information East China Shipbuilding Institute Zhenjiang Dept of Physics Nanjing University Nanji |
| Institution: | Zhou Qingchun 1,Xu Rongqing 2,Wang Jiafu 3 1 Dept.of Basic Courses,East China Shipbuilding Institute,Zhenjiang 212003 2 Dept of Electronics and Information,East China Shipbuilding Institute,Zhenjiang 212003 3 Dept of Physics,Nanjing University,Nanji |
| Abstract: | The dependence of polar Kerr effect on electron exchange splitting energy is investigated by using the microscopic quantum theory and energy band transition model.It is found that the Kerr rotation θK is not proportional to exchange splitting energy Δ unless Δ is very small;expansion of θK in terms of Δ includes only odd power. |
| Keywords: | Spin exchange interaction Kerr effect Energy band Magnetism Green function |
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