Temperature dependence of resistance in epitaxial Fe/MgO/Fe magnetic tunnel junctions
文献类型：期刊论文
| 作者 | Ma, QL ; Wang, SG ; Zhang, J ; Wang, Y ; Ward, RCC ; Wang, C ; Kohn, A ; Zhang, XG ; Han, XF |
| 刊名 | APPLIED PHYSICS LETTERS
 |
| 出版日期 | 2009 |
| 卷号 | 95期号:5 |
| 关键词 | ROOM-TEMPERATURE LARGE MAGNETORESISTANCE THIN-FILM INTERFACE BARRIERS |
| ISSN号 | 0003-6951 |
| 通讯作者 | Wang, SG (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, State Key Lab Magnetism, Beijing 100190, Peoples R China. |
| 中文摘要 | The temperature dependence of resistance in parallel (P) and antiparallel (AP) configurations (R(P,AP)) has been investigated in epitaxial Fe/MgO/Fe junctions with varying MgO barrier thicknesses t(MgO). R(AP) exhibits a substantial decrease with increasing temperature for samples with t(MgO) ranging from 3.0 to 1.5 nm. In contrast, R(P) is approximately temperature independent when t(MgO)=3.0 nm and increases with temperature when t(MgO)=2.1 and 1.5 nm. Possible origins of this temperature dependence of resistance, which include taking into account a spin independent term and consideration of spin-flip scattering, are discussed. We attribute the temperature dependence of R(P,AP) to the misalignment of magnetic moments in the electrodes due to thermal excitations and its effect on the spin dependent tunneling. |
| 收录类别 | SCI |
| 资助信息 | National Basic Research Program of China [2009CB929203]; State Key Project of Fundamental Research of Ministry of Science and Technology [2006CB932200]; National Natural Science Foundation [10874225, 50721001, 60871048]; NSFC-the Royal Society (U.K.); NSFC-Australia DEST; K. C. Wong Education Foundation, Hong Kong; Engineering and Physical Sciences Research Council of U. K. |
| 语种 | 英语 |
| 公开日期 | 2013-09-23 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/44767]  |
| 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 | Ma, QL,Wang, SG,Zhang, J,et al. Temperature dependence of resistance in epitaxial Fe/MgO/Fe magnetic tunnel junctions[J]. APPLIED PHYSICS LETTERS,2009,95(5). |
| APA | Ma, QL.,Wang, SG.,Zhang, J.,Wang, Y.,Ward, RCC.,...&Han, XF.(2009).Temperature dependence of resistance in epitaxial Fe/MgO/Fe magnetic tunnel junctions.APPLIED PHYSICS LETTERS,95(5). |
| MLA | Ma, QL,et al."Temperature dependence of resistance in epitaxial Fe/MgO/Fe magnetic tunnel junctions".APPLIED PHYSICS LETTERS 95.5(2009). |
入库方式： OAI收割
来源：物理研究所
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