Fabrication and characterization of Co-ferrite thin films for a ferromagnetic barrier in a spin-filtering device operating at room temperature

R. Goto, Y. K. Takahashi, N. Tezuka, K. Inomata, S. Sugimoto, K. Hono

Research output: Contribution to journalArticlepeer-review

Abstract

For development of a spin-filtering device with a ferromagnetic barrier, very thin Co-ferrite layers are prepared by the plasma oxidization of the CoFe2 surface deposited on MgO(001) single crystal substrates and postannealing process. Spin-filtering junctions consisting of CoFe 2/(MgO/)Co-ferrite/Ta are fabricated and exhibit nonlinear J-V curves. By the insertion of a MgO layer, clear independent rotation of two magnetic moments is observed.

Original languageEnglish
Pages (from-to)2797-2799
Number of pages3
JournalIEEE Transactions on Magnetics
Volume43
Issue number6
DOIs
Publication statusPublished - 2007 Jun
Externally publishedYes

Keywords

  • Co-ferrite
  • Spin-filtering devices
  • Spin-polarized current sources
  • Spintronics

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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