Enhanced magnetoresistance in lateral spin-valves
Enhanced magnetoresistance in lateral spin-valves
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DOI：
10.1063/1.3488818
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发表时间：
2010-09-13
影响因子：
4
通讯作者：
Saha, D.
中科院分区：
文献类型：
--
作者：
Adari, R.;Patil, T.;Saha, D.
从实验和理论上研究了特征尺寸对侧向自旋电子器件特性的影响。结果表明，将自旋输运限制在器件的有源区可以显著提高自旋相关响应的大小。自旋输运的数值模拟证实了实验观测结果。发现器件特性与自旋偏振器和分析器的尺寸有很强的关系。观察到响应达到最优器件特征尺寸的峰值，并且这被认为是温度的函数。对于非常小和非常大的器件，自旋依赖效应变得更弱。(C)2010年美国物理研究所。[DOI：10.1063/1.3488818]
The effect of feature sizes on the characteristics of lateral spintronic devices have been investigated experimentally and theoretically. It is demonstrated that confining spin-transport in the active region of a device enhances magnitude of the spin-dependent response substantially. Numerical simulation of spin-transport corroborates the experimental observations. Device characteristics are found to be a strong function of spin-polarizer and analyzer dimensions. The response is observed to attain a peak value for an optimum device feature size, and this is seen to be a function of temperature. Spin dependent effects become weaker for very small and very large devices. (c) 2010 American Institute of Physics. [doi:10.1063/1.3488818]