Spin-dependent transport in a nanopillar non-local spin valve

J. B. Laloë; T. Yang; T. Kimura; Y. Otani

doi:10.1016/j.jmmm.2009.07.045

Spin-dependent transport in a nanopillar non-local spin valve

J. B. Laloë, T. Yang, T. Kimura, Y. Otani

Research output: Contribution to journal › Article

Abstract

We investigate the injection of a pure spin current into a non-magnetic Cu wire in a lateral spin valve. We detect the spin accumulation occurring at the interfaces between the magnetic nanopillars and the non-magnetic wire in the non-local geometry. We confirm that the accumulated spins diffuse equally in the Cu wire irrespective of the presence of a charge current. The inversion of the injector and detector magnetic nanopillars does not affect the spin signal, in agreement with analytical predictions for this system.

Original language	English
Pages (from-to)	3829-3832
Number of pages	4
Journal	Journal of Magnetism and Magnetic Materials
Volume	321
Issue number	22
DOIs	https://doi.org/10.1016/j.jmmm.2009.07.045
Publication status	Published - Nov 1 2009
Externally published	Yes

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All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Cite this

Laloë, J. B., Yang, T., Kimura, T., & Otani, Y. (2009). Spin-dependent transport in a nanopillar non-local spin valve. Journal of Magnetism and Magnetic Materials, 321(22), 3829-3832. https://doi.org/10.1016/j.jmmm.2009.07.045

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AB - We investigate the injection of a pure spin current into a non-magnetic Cu wire in a lateral spin valve. We detect the spin accumulation occurring at the interfaces between the magnetic nanopillars and the non-magnetic wire in the non-local geometry. We confirm that the accumulated spins diffuse equally in the Cu wire irrespective of the presence of a charge current. The inversion of the injector and detector magnetic nanopillars does not affect the spin signal, in agreement with analytical predictions for this system.

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10.1016/j.jmmm.2009.07.045