Spin Hall and Edelstein Effects in Metallic Films

• Authors: J. Borge , C. Gorini , G. Vignale , R. Raimondi
• Languages of publication: EN

Abstracts

EN

In an insulator-metal-insulator junction, inversion-symmetry breaking at the interfaces between the 3D metallic film and the top and bottom insulating layers may give rise to a sizeable (Rashba-like) spin-orbit interaction. In this paper we study the spin Hall and Edelstein effects produced by such an interface interaction through a quasiclassical approach. We find that the spin Hall conductivity has a finite value even if spin-orbit interaction with impurities in the bulk of the metallic film is neglected and disorder is properly taken into account. This is in sharp contrast with the case of a strictly 2D metallic layer, in which case impurity scattering is known to completely suppress Rashba-like contributions to the spin Hall conductivity. The non-vanishing of the latter has a profound influence on the Edelstein effect, which we show to consist of two terms, the first with the standard form valid in an exactly 2D system, and a second arising from the presence of the third dimension.

Keywords

EN

72.25.Mk; 75.70.Tj; 85.75.-d

Discipline

• 72.25.Mk: Spin transport through interfaces
• 85.75.-d: Magnetoelectronics; spintronics: devices exploiting spin polarized transport or integrated magnetic fields
• 75.70.Tj: Spin-orbit effects(see also 71.70.Ej Spin-orbit coupling, Zeeman and Stark splitting, Jahn-Teller effect)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 127
• Issue: 2
• Pages: 457-459

Dates

published

2015-02

Contributors

author

J. Borge

• Dipartimento di Matematica e Fisica, Università Roma Tre, Via della Vasca Navale 84, Rome, Italy

author

C. Gorini

• Service de Physique de l'État Condensé, CNRS URA 2464, CEA Saclay, F-91191 Gif-sur-Yvette, France

author

G. Vignale

• Department of Physics and Astronomy, University of Missouri, Columbia MO 65211, USA

author

R. Raimondi

• Dipartimento di Matematica e Fisica, Università Roma Tre, Via della Vasca Navale 84, Rome, Italy

References

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Identifiers

DOI

10.12693/APhysPolA.127.457