Electrical transport properties of bulk NicFe1-c alloys and related spin-valve systems

C. Blaas, L. Szunyogh, P. Weinberger, C. Sommers, P. M. Levy

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Within the Kubo-Greenwood formalism we use the fully relativistic, spin-polarized, screened Korringa-Kohn-Rostoker method together with the coherent-potential approximation for layered systems to calculate the resistivity for the permalloy series NicFe1-c. We are able to reproduce the variation of the resistivity across the entire series; notably the discontinuous behavior in the vicinity of the structural phase transition from bcc to fcc. The absolute values for the resistivity are within a factor of 2 of the experimental data. Also the giant magnetoresistance of a series of permalloy-based spin-valve structures is estimated; we are able to reproduce the trends observed on prototypical spin-valve structures.

Original languageEnglish
Article number224408
Pages (from-to)2244081-2244086
Number of pages6
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume63
Issue number22
DOIs
Publication statusPublished - Jan 1 2001

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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