| 磁各向异性对(In,Ga)As衬底(Ga,Mn)As的影响 |
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| 引用本文： | 朱科,郑厚植,甘华东,刘剑,朱汇,章昊,李桂荣,赵建华.磁各向异性对(In,Ga)As衬底(Ga,Mn)As的影响[J].红外与毫米波学报,2011,30(1):1-5. |
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| 作者姓名： | 朱科 郑厚植 甘华东 刘剑 朱汇 章昊 李桂荣 赵建华 |
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| 作者单位： | 中国科学院半导体研究所超晶格国家重点实验室,北京,100083 |
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| 基金项目： | No.2006CB932801，No 2007CB924903，No 2007CB924904 |
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| 摘 要： | 在(In,Ga)As缓冲层中生长的Ga<,0.95>Mn<,0.05>As薄膜的磁光圆二向色性(MCD)扫描磁场的测量中发现异常现象,这一现象出现在外磁场把样品的磁化矢量扭转到与入射光方向一致或远离入射光方向之时.通过磁各向异性的平均场理论,我们认为这实际上是磁各向异性对带-带跃迁影响的表现,是由于空穴带劈裂和E-k色...
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| 关 键 词： | (Ga Mn)As 磁光效应 振荡 磁各向异性 |
| 收稿时间： | 4/21/2010 5:08:05 AM |
| 修稿时间： | 4/21/2010 5:08:05 AM |
Influence of magnetocrystalline anisotropy on magneto-optics in GaMnAs/InGaAs epilayer |
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| ZHU Ke,ZHENG Hou-Zhi,GAN Hua-Dong,LIU Jian,ZHU Hui,ZHANG Hao,LI Gui-Rong and ZHAO Jian-Hua.Influence of magnetocrystalline anisotropy on magneto-optics in GaMnAs/InGaAs epilayer[J].Journal of Infrared and Millimeter Waves,2011,30(1):1-5. |
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| Authors: | ZHU Ke ZHENG Hou-Zhi GAN Hua-Dong LIU Jian ZHU Hui ZHANG Hao LI Gui-Rong and ZHAO Jian-Hua |
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| Affiliation: | Institute of Semiconductors of CAS,Institute of Semiconductors of CAS |
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| Abstract: | We report abnormal behaviors in magnetic circular dichroism (MCD) in both as-grown and annealed Ga0.95Mn0.05As/InGaAs epilayer, as the direction of magnetization vector turns away from or toward the direction of incident beam by applying a magnetic field. Following the mean-field theory of magnetocrystalline anisotropy, we propose that our observations are actually the manifestation of the influence of the magnetic anisotropy on interband optical transitions due to the dependence of hole band splitting and warp of E-k dispersion relation on the magnetization orientation. |
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| Keywords: | (Ga Mn)As anisotropic magneto-optical magnetization vector |
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