A scheme for spin transistor with extremely large on/off current ratio

L. Wang; K. Shen; S. Y. Cho; M. W. Wu

doi:10.1063/1.3050326

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arXiv · 0810.3319

A scheme for spin transistor with extremely large on/off current ratio

L. Wang·K. Shen·S. Y. Cho·M. W. Wu

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Abstract

Quantum wires with periodic local Rashba spin-orbit couplings are proposed for a higher performance of spin field-effect transistor. Fano-Rashba quantum interference due to the spin-dependent modulated structure gives rise to a broad energy range of vanishingly small transmission. Tuning Rashba spin-orbit couplings can provide the on- or off-currents with extremely large on/off current ratios even in the presence of a strong disorder.

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L. Wang, K. Shen, S. Y. Cho, M. W. Wu. 2008-11-12. A scheme for spin transistor with extremely large on/off current ratio. https://doi.org/10.1063/1.3050326

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