Longitudinal spin transport in diluted magnetic semiconductor superlattices: The effect of the giant Zeeman splitting
文献类型：期刊论文
| 作者 | Chang K ; Xia JB ; Peeters FM |
| 刊名 | physical review b
 |
| 出版日期 | 2002 |
| 卷号 | 65期号:15页码:art.no.155211 |
| 关键词 | ENVELOPE-FUNCTION APPROXIMATION QUANTUM-WELLS CONDUCTION ELECTRONS BAND-STRUCTURE SUPER-LATTICE INJECTION MAGNETORESISTANCE HETEROSTRUCTURE SCATTERING |
| ISSN号 | 1098-0121 |
| 通讯作者 | chang k,chinese acad sci,inst semicond,natl lab superlattices & microstruct,pob 912,beijing 100083,peoples r china. |
| 中文摘要 | longitudinal spin transport in diluted magnetic semiconductor superlattices is investigated theoretically. the longitudinal magnetoconductivity (mc) in such systems exhibits an oscillating behavior as function of an external magnetic field. in the weak magnetic-field region the giant zeeman splitting plays a dominant role that leads to a large negative magnetoconductivity. in the strong magnetic-field region the mc exhibits deep dips with increasing magnetic field. the oscillating behavior is attributed to the interplay between the discrete landau levels and the fermi surface. the decrease of the mc at low magnetic field is caused by the s-d exchange interaction between the electron in the conduction band and the magnetic ions. the spin polarization increases rapidly with increasing magnetic field and the longitudinal current becomes spin polarized in strong magnetic field. the effect of spin-disorder scattering on mc is estimated numerically for low magnetic fields and found to be neglectible for our system. |
| 学科主题 | 半导体物理 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2010-08-12 |
| 源URL | [http://ir.semi.ac.cn/handle/172111/11926]  |
| 专题 | 半导体研究所_中国科学院半导体研究所（2009年前） |
| 推荐引用方式 GB/T 7714 | Chang K,Xia JB,Peeters FM. Longitudinal spin transport in diluted magnetic semiconductor superlattices: The effect of the giant Zeeman splitting[J]. physical review b,2002,65(15):art.no.155211. |
| APA | Chang K,Xia JB,&Peeters FM.(2002).Longitudinal spin transport in diluted magnetic semiconductor superlattices: The effect of the giant Zeeman splitting.physical review b,65(15),art.no.155211. |
| MLA | Chang K,et al."Longitudinal spin transport in diluted magnetic semiconductor superlattices: The effect of the giant Zeeman splitting".physical review b 65.15(2002):art.no.155211. |
入库方式： OAI收割
来源：半导体研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。