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Spin projection and spin current density within relativistic electronic-transport calculations

S. Lowitzer, D. Ködderitzsch, and H. Ebert
Phys. Rev. B 82, 140402(R) – Published 8 October 2010

Abstract

A spin projection scheme is presented which allows the decomposition of the electric conductivity into two different spin channels within fully relativistic ab initio transport calculations that account for the impact of spin-orbit coupling. This is demonstrated by calculations of the spin-resolved conductivity of Fe1xCrx and Co1xPtx disordered alloys on the basis of the corresponding Kubo-Greenwood equation implemented using the Korringa-Kohn-Rostoker coherent-potential approximation band-structure method. In addition, results for the residual resistivity of diluted Ni-based alloys are presented that are compared to theoretical and experimental ones that rely on Mott’s two-current model for spin-polarized systems. The application of the scheme to deal with the spin-orbit induced spin-Hall effect is discussed in addition.

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  • Received 30 July 2010

DOI:https://doi.org/10.1103/PhysRevB.82.140402

©2010 American Physical Society

Authors & Affiliations

S. Lowitzer, D. Ködderitzsch, and H. Ebert

  • Department Chemie, Physikalische Chemie, Universität München, Butenandstr. 5-13, 81377 München, Germany

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Issue

Vol. 82, Iss. 14 — 1 October 2010

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