CrAs(001)/AlAs(001) heterogeneous junction as a spin current diode predicted by first-principles calculations

We report on first-principles calculations of spin-dependent quantum transport in a CrAs(0 0 1)/AlAs(0 0 1) heterogeneous junction and predict a strong diode effect of charge and spin current. The minority spin current is absolutely inhibited when the bias voltage is applied to the terminals of both...

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Published in:Journal of magnetism and magnetic materials 2009-02, Vol.321 (4), p.312-315
Main Authors: MIN, Y, YAO, K. L, LIU, Z. L, CHENG, H. G, ZHU, S. C, GAO, G. Y
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electronic transport in condensed matter
Exact sciences and technology
Physics
Spin polarized transport
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description We report on first-principles calculations of spin-dependent quantum transport in a CrAs(0 0 1)/AlAs(0 0 1) heterogeneous junction and predict a strong diode effect of charge and spin current. The minority spin current is absolutely inhibited when the bias voltage is applied to the terminals of both CrAs and AlAs. The majority spin current is inhibited when the bias voltage is applied to the terminal of CrAs and 'relaxed' when the bias voltage is applied to the terminal of AlAs. The charge and spin current diode are promising for reprogrammable logic applications in the field of spintronics.
doi_str_mv 10.1016/j.jmmm.2008.09.009
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subjects Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electronic transport in condensed matter
Exact sciences and technology
Physics
Spin polarized transport
title CrAs(001)/AlAs(001) heterogeneous junction as a spin current diode predicted by first-principles calculations
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