| 电流感应磁化翻转效应的改进的系综模型 | |
| 张磊 ; 胡九宁 ; 任敏 ; 董浩 ; 邓宁 ; 陈培毅 ; Zhang Lei ; Hu Jiu-Ning ; Ren Min ; Dong Hao ; Deng Ning ; Chen Pei-Yi | |
| 2010-06-09 ; 2010-06-09 | |
| 关键词 | 赝自旋阀 电导率匹配 自旋转移扭矩 电流感应磁化翻转效应 pseudo spin valves,conductance matching,spin transfer torque,current-induced magnetic switching O441 |
| 其他题名 | An improved ensemble model on current induced magnetic switching effect |
| 中文摘要 | 运用宏观双通道扩散模型研究了赝自旋阀结构中的自旋相关输运过程,考虑到磁化强度矢量的横向分量的影响,建立了自由层磁化强度矢量的动力学方程,利用自旋流连续和化学势差连续作为边界条件.理论计算求解了电流感应磁化翻转效应中的临界电流,解释了铁磁层和非磁层电导率匹配问题和纵向场对电流感应磁化翻转效应中临界电流的影响.; The current induced magnetic switching(CIMS) effect could occur without the magnetic field in nano-scale pseudo-spin valves that have the potential perspective for application in nonvolatile magnetic random access memory.In this paper,spin transport process in the pseudo-spin valve nanopillars has been investigated with macroscopic double conducting channel diffusion model.Dynamic equation of the magnetization of free layer is established with the consideration of the influence of transverse component of the magnetization vector of free layer.And the boundary conditions of the spin current continuity and chemical-potential-split equality are employed.The critical current in CIMS effect is calculated.The influences of the conductance mismatch of ferromagnetic and nonmagnetic layers and longitudinal applied field on the critical current is interpreted.; 国家自然科学基金(批准号:60606021); 高等学校博士学科点专项科研基金(批准号:20060003067); 国家重点基础研究发展计划(973)项目(批准号:2006CB921106)资助的课题~~ |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/56965]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 张磊,胡九宁,任敏,等. 电流感应磁化翻转效应的改进的系综模型[J],2010, 2010. |
| APA | 张磊.,胡九宁.,任敏.,董浩.,邓宁.,...&Chen Pei-Yi.(2010).电流感应磁化翻转效应的改进的系综模型.. |
| MLA | 张磊,et al."电流感应磁化翻转效应的改进的系综模型".(2010). |
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