磁隧道结中量子输运的扩展h ckel理论

2014 International Conference on Simulation of Semiconductor Processes and Devices (SISPAD) Pub Date : 2014-10-23 DOI:10.1109/SISPAD.2014.6931623

G. Shine, S. Manipatruni, A. Chaudhry, K. Saraswat, D. Nikonov, I. Young

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引用次数: 1

摘要

利用半经验紧密结合模型和非平衡格林函数计算了磁隧道结的自旋分辨电导率。通过比较传统的Fe-MgO-Fe结构和Co2FeAl-MgO-Co2FeAl结构，研究了半金属电极的性能。结果表明，在宽偏置范围内，Co2FeAl器件具有较高的隧道磁电阻和电阻面积积。

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Extended Hückel theory for quantum transport in magnetic tunnel junctions

Spin-resolved conductivities in magnetic tunnel junctions are calculated using a semiempirical tight-binding model and non-equilibrium Green's functions. The performance of half-metallic electrodes is studied by comparing conventional Fe-MgO-Fe structures to Co2FeAl-MgO-Co2FeAl structures. The results show higher tunneling magnetoresistance and resistance-area product for Co2FeAl devices across a wide bias range.

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2014 International Conference on Simulation of Semiconductor Processes and Devices (SISPAD)

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