Insight into the skew-scattering mechanism of the spin Hall effect: Potential scattering versus spin-orbit scattering

Christian Herschbach*, Dmitry V. Fedorov, Ingrid Mertig, Martin Gradhand, Kristina Chadova, Hubert Ebert, Diemo Koedderitzsch

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

12 Citations (Scopus)

Abstract

We present a detailed analysis of the skew-scattering contribution to the spin Hall conductivity using an extended version of the resonant scattering model of Fert and Levy [Phys. Rev. Lett. 106, 157208 (2011)]. For 5d impurities in a Cu host, the proposed phase shift model reproduces the corresponding first-principles calculations. Crucial for that agreement is the consideration of two scattering channels related to p and d impurity states since the discussed mechanism is governed by a subtle interplay between the spin-orbit and potential scattering in both angular-momentum channels. It is shown that the potential scattering strength plays a decisive role for the magnitude of the spin Hall conductivity.

Original languageEnglish
Article number205102
Number of pages5
JournalPhysical Review B: Condensed Matter and Materials Physics
Volume88
Issue number20
DOIs
Publication statusPublished - 4 Nov 2013

Keywords

  • IMPURITIES
  • ALLOYS
  • ELECTRONS
  • TRANSPORT
  • COPPER

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