| Negative tunnelling magnetoresistance in spin filtering magnetic junctions with spin-orbit coupling |
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| 引用本文： | 李云. Negative tunnelling magnetoresistance in spin filtering magnetic junctions with spin-orbit coupling[J]. 中国物理 B, 2011, 20(5): 57303-057303. DOI: 10.1088/1674-1056/20/5/057303 |
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| 作者姓名： | 李云 |
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| 作者单位： | Department of Materials Science and Engineering, Yunnan University, Kunming 650091, China; Department of Chemistry, Seoul National University, Seoul 151-747, Republic of Korea Department of Chemistry, KAIST, 373-1 Guseong-dong, Yuseong-gu, Daejeon 305-701, Republic of Korea |
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| 基金项目： | Project supported by the National Natural Science Foundation of China (Grant No. 10564004) and Korea Research Foundation (Grant No. KRF-2005-070-C00065). |
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| 摘 要： | We present theoretical calculations of spin transport in spin filtering magnetic tunnelling junctions based on the Landauer-Buttiker formalism and taking into account the spin-orbit coupling(SOC).It is shown that spin-flip scattering induced by SOC is stronger in parallel alignment of magnetization of the ferromegnet barrier(FB) and the ferromagnetic electrode than that in antiparallel case.The increase of negative tunnelling magnetoresistance with bias is in agreement with recent experimental observation.
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| 关 键 词： | tunnelling magnetoresistance spin filtering barrier magnetic tunnelling junctions spin-orbit coupling |
| 收稿时间： | 2010-04-28 |
Negative tunnelling magnetoresistance in spin filtering magnetic junctions with spin–orbit coupling |
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| Li Yun. Negative tunnelling magnetoresistance in spin filtering magnetic junctions with spin–orbit coupling[J]. Chinese Physics B, 2011, 20(5): 57303-057303. DOI: 10.1088/1674-1056/20/5/057303 |
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| Authors: | Li Yun |
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| Affiliation: | Department of Materials Science and Engineering, Yunnan University, Kunming 650091, China; Department of Chemistry, Seoul National University, Seoul 151-747, Republic of Korea Department of Chemistry, KAIST, 373-1 Guseong-dong, Yuseong-gu, Daejeon 305-701, Republic of Korea |
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| Abstract: | We present theoretical calculations of spin transport in spin filtering magnetic tunnelling junctions based on the Landauer–Büttiker formalism and taking into account the spin–orbit coupling (SOC). It is shown that spin-flip scattering induced by SOC is stronger in parallel alignment of magnetization of the ferromegnet barrier (FB) and the ferromagnetic electrode than that in antiparallel case. The increase of negative tunnelling magnetoresistance with bias is in agreement with recent experimental observation. |
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| Keywords: | tunnelling magnetoresistance spin filtering barrier magnetic tunnelling junctions spin–orbit coupling |
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