Efficient spin injection into nonmagnetic metals through low-resistance MgO

L. Wang; Y. Fukuma; H. Idzuchi; Y. Otani

doi:10.1063/1.3556759

Efficient spin injection into nonmagnetic metals through low-resistance MgO

L. Wang, Y. Fukuma, H. Idzuchi, Y. Otani

Research output: Contribution to journal › Article

3 Citations (Scopus)

Abstract

The effect of interface on the spin injection characteristics in lateral spin valves with Permalloy/MgO/Ag junctions has been studied. The spin valve signal drastically increases after the insertion of a thin MgO layer in the local and nonlocal spin injection schemes. We analyze our results based on the spin-dependent diffusion equation. This reveals that the interface resistance of ∼100 fm² could effectively overcome the spin resistance mismatch between ferromagnetic and nonmagnetic metals.

Original language	English
Article number	07C506
Journal	Journal of Applied Physics
Volume	109
Issue number	7
DOIs	https://doi.org/10.1063/1.3556759
Publication status	Published - 2011 Apr 1
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1063/1.3556759

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Wang, L., Fukuma, Y., Idzuchi, H., & Otani, Y. (2011). Efficient spin injection into nonmagnetic metals through low-resistance MgO. Journal of Applied Physics, 109(7), [07C506]. https://doi.org/10.1063/1.3556759

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