Magnetic-field enhancement of nonlocal spin signal in Ni 80Fe20/Ag lateral spin valves

G. Mihajlović; S. I. Erlingsson; K. Výborný; J. E. Pearson; S. D. Bader; A. Hoffmann

doi:10.1103/PhysRevB.84.132407

Magnetic-field enhancement of nonlocal spin signal in Ni ₈₀Fe₂₀/Ag lateral spin valves

G. Mihajlović
, S. I. Erlingsson
, K. Výborný
, J. E. Pearson
, S. D. Bader
, A. Hoffmann

Research output: Contribution to journal › Article › peer-review

Abstract

We observe a magnetic-field-induced enhancement of the nonlocal spin signal in Ni₈₀Fe₂₀/Ag lateral spin valves. The enhancement depends on the bias current polarity but not on the field direction. We present a theoretical model that explains our experimental results, taking into account the electron-spin relaxation of magnetic impurities. We find that the relaxation is about an order of magnitude weaker than Elliott-Yafet relaxation.

Original language	English (US)
Article number	132407
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	84
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevB.84.132407
State	Published - Oct 13 2011
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Online availability

10.1103/PhysRevB.84.132407

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Cite this

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abstract = "We observe a magnetic-field-induced enhancement of the nonlocal spin signal in Ni80Fe20/Ag lateral spin valves. The enhancement depends on the bias current polarity but not on the field direction. We present a theoretical model that explains our experimental results, taking into account the electron-spin relaxation of magnetic impurities. We find that the relaxation is about an order of magnitude weaker than Elliott-Yafet relaxation.",

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AU - Bader, S. D.

AU - Hoffmann, A.

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AB - We observe a magnetic-field-induced enhancement of the nonlocal spin signal in Ni80Fe20/Ag lateral spin valves. The enhancement depends on the bias current polarity but not on the field direction. We present a theoretical model that explains our experimental results, taking into account the electron-spin relaxation of magnetic impurities. We find that the relaxation is about an order of magnitude weaker than Elliott-Yafet relaxation.

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