Spin polarization of alternate monatomic epitaxial [Fe/Co] n superlattice

In Chang Chu, Masaaki Doi, Masashi Sahashi, Ammanabrolu Rajanikanth, Yukiko Takahashi, Kazuhiro Hono

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The spin polarization (P) of alternate monatomic layered (AML) epitaxial [Fe/Co] n superlattices grown on MgO(001) substrates by electron beam (EB) evaporation has been measured by the point contact Andreev reflection (PCAR) method. The intrinsic transport P of 0.60 was obtained for the AML epitaxial [Fe/Co] n superlattice grown at 75 °C, which is comparable to that of half-metallic Heusler alloys measured by PCAR. The AML epitaxial [Fe/Co] n superlattices on MgO(001), which are expected to possess the B2 ordered structure, show the highest spin polarization of metallic Fe-Co alloy films.

Original languageEnglish
Article number093006
JournalJapanese journal of applied physics
Volume51
Issue number9
DOIs
Publication statusPublished - 2012 Sep 1

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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