Electrical transport in magnetic sandwich with interface inter-diffusional roughness and/or alloying
文献类型：期刊论文
| 作者 | Xu, HY ; Yu, WX ; Mai, ZH |
| 刊名 | INTERNATIONAL JOURNAL OF MODERN PHYSICS B
 |
| 出版日期 | 1999 |
| 卷号 | 13期号:17页码:2313 |
| 关键词 | SPIN-DEPENDENT SCATTERING CR-FE SANDWICHES GIANT MAGNETORESISTANCE MULTILAYERED STRUCTURES LAYERED STRUCTURES FE/CR SUPERLATTICES EXCHANGE CONDUCTIVITY FILMS |
| ISSN号 | 0217-9792 |
| 通讯作者 | Xu, HY: Chinese Acad Sci, Inst Phys, POB 603, Beijing 100080, Peoples R China. |
| 中文摘要 | A thin transition sublayer with its own spin-dependent lattice potentials and relaxation times of the conduction electrons is introduced to describe the interface inter-diffusional roughness and/or alloying. Within the real-space Kubo formalism, the contribution of the spin-dependent lattice potentials to the giant magnetoresistance (GMR) effect, the dependence of the GMR effect on the spin asymmetry ratio and the spin-down relaxation time of the transition sublayers, the GMR effect versus the thicknesses of the ferromagnetic (FM) and nonmagnetic (NM) layers are discussed based on the jellium model with step-like and spin-dependent lattice potentials. The interesting results emerging in our calculations are that (1) the contribution of the spin-dependent lattice potentials to the GMR effect may be positive or negative, it is decided by the thicknesses of the FM and NM layers; (2) the contribution of spin-dependent lattice potentials to the GMR effect is much weaker than that of the spin-dependent relaxation times; (3) the increase or decrease of the GMR effect is not simply decided by the increased or decreased interface disorder but decided by the increased or decreased spin asymmetry ratio of the interface structure, which is caused by the change of the interface disorder; (4) for the case of the spin asymmetry ratio of the transition sublayers smaller than that of the FM layers, there exists a critical thickness d(c) for the thickness d(F) of the FM layers, when d(F) > d(c), the existence of the interface inter-diffusional roughness and/or alloying increases the GMR effect, however, when d(F) < d(c), it is on the contrary. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/36962]  |
| 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 | Xu, HY,Yu, WX,Mai, ZH. Electrical transport in magnetic sandwich with interface inter-diffusional roughness and/or alloying[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS B,1999,13(17):2313. |
| APA | Xu, HY,Yu, WX,&Mai, ZH.(1999).Electrical transport in magnetic sandwich with interface inter-diffusional roughness and/or alloying.INTERNATIONAL JOURNAL OF MODERN PHYSICS B,13(17),2313. |
| MLA | Xu, HY,et al."Electrical transport in magnetic sandwich with interface inter-diffusional roughness and/or alloying".INTERNATIONAL JOURNAL OF MODERN PHYSICS B 13.17(1999):2313. |
入库方式： OAI收割
来源：物理研究所
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