Temperature dependence of magnetoresistance in the magnetic tunnel junction with an asymmetrical barrier
文献类型：期刊论文
| 作者 | Wang, JZ ; Li, BZ ; Hu, ZN |
| 刊名 | PHYSICS LETTERS A
 |
| 出版日期 | 1999 |
| 卷号 | 261期号:5-6页码:371 |
| 关键词 | SURFACE MAGNETIZATION FERROMAGNET EXCHANGE SCATTERING |
| ISSN号 | 0375-9601 |
| 通讯作者 | Wang, JZ (reprint author), CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China. |
| 中文摘要 | By considering the excitation of the spin wave at the interface between magnetic electrodes and insulating barrier and taking the mean-field approximation to the s-d exchange interaction, a T-3/2 law is derived for the temperature (T) dependence of the exchange field in ferromagnets. Then we have investigated the T dependence of spin-polarized tunneling in a magnetic tunnel junction with an asymmetrical barrier. It is found that the extended Slonczewski model can provide a good approximation for the T-dependence of the junction magnetoresistance (JMR), a qualitative explanation for parallel tunneling conductance, and an exact description for the conductance difference between the parallel and antiparallel alignments of two electrodes (Delta G). However, for the Julliere model, owing to the smaller contribution from interfacial states it involves, a decreasing T-dependence of the parallel conductance is derived, which is in contradiction with experimental results. (C) 1999 Elsevier Science B.V. All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-23 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/44761]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Wang, JZ,Li, BZ,Hu, ZN. Temperature dependence of magnetoresistance in the magnetic tunnel junction with an asymmetrical barrier[J]. PHYSICS LETTERS A,1999,261(5-6):371. |
| APA | Wang, JZ,Li, BZ,&Hu, ZN.(1999).Temperature dependence of magnetoresistance in the magnetic tunnel junction with an asymmetrical barrier.PHYSICS LETTERS A,261(5-6),371. |
| MLA | Wang, JZ,et al."Temperature dependence of magnetoresistance in the magnetic tunnel junction with an asymmetrical barrier".PHYSICS LETTERS A 261.5-6(1999):371. |
入库方式： OAI收割
来源：物理研究所
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