Enhancement of interfacial specific resistance by the insertion of Fe(001) layers between alternate monatomic [Fe/Co] n superlattices and Ag spacer

J. W. Jung, Y. Shiokawa, Z. Jin, M. Doi, M. Sahashi

Research output: Contribution to journalArticlepeer-review

Abstract

The bulk and interface spin scattering asymmetric coefficients, β F and γ F/N, respectively, as well as the interfacial specific resistance, AR * F/N, contribute to the total resistance change-area product, δRA, in current- perpendicular-to-plane (CPP) geometry. In this paper, we report the effect of the insertion of a 1 nm Fe layer into ferromagnetic (F)/non-ferromagnetic (N) interfaces on the spin dependent transport properties. Using the Valešt-Fert theory based on the two-current model in which δRA is obtained as a function of thicknesses of the ferromagnetic layer (3, 4, and 5 nm), we experimentally deduced the values of β F, γ F/N, and AR * F/N of exchange-biased spin valves (EBSVs) for an artificially ordered B2 state Fe 50Co 50 alloy as a magnetic layer and an Ag spacer layer.

Original languageEnglish
Article number07B707
JournalJournal of Applied Physics
Volume111
Issue number7
DOIs
Publication statusPublished - 2012 Apr 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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