Spin-polarized electronic structures and transport properties of Fe-Co alloys

Yohei Kota, Tomohiro Takahashi, Hiroki Tsuchiura, Akimasa Sakuma

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

The electrical resistivities of Fe-Co alloys owing to random alloy disorder are calculated using the Kubo-Greenwood formula. The obtained electrical resistivities agree well with experimental data quantitatively at low temperature. The spin polarization of Fe50 Co50 estimated from the conductivity (86%) has opposite sign to that from the densities of the states at the Fermi level (-73%). It is found that the conductivity is governed mainly by s electrons, and the s electrons in the minority spin states are less conductive due to strong scattering by the large densities of the states of d electrons than the majority spin electrons.

Original languageEnglish
Article number07B716
JournalJournal of Applied Physics
Volume105
Issue number7
DOIs
Publication statusPublished - 2009 Apr 27

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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