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Abstract: Quantum wires with periodic local Rashba spin-orbit couplings are proposedfor a higher performance of spin field-effect transistor. Fano-Rashba quantuminterference due to the spin-dependent modulated structure gives rise to abroad energy range of vanishingly small transmission. Tuning Rashba spin-orbitcouplings can provide the on- or off-currents with extremely large on-offcurrent ratios even in the presence of a strong disorder.



Autor: L. Wang, K. Shen, S. Y. Cho, M. W. Wu

Fuente: https://arxiv.org/







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