Tunnel magnetoresistance between ferromagnetic electrodes and hard magnetic nano particles

K. Inomata, Y. Saito

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)

Abstract

Spin-dependent tunneling has been investigated for nano-structured ferromagnetic tunnel junctions, in which an insulating nano-structured film made of layered hard ferromagnetic Co80Pt20 nano-particles dispersed in an insulating SiO2 or Al2O3 matrix is sandwiched between two soft ferromagnetic electrodes, Fe/Co80Pt20 as a bottom electrode and Co9Fe as a top electrode. The nano-structured films exhibited in-plane uniaxial magnetic anisotropy when MgO(1 1 0) was used as a substrate. Therefore, the junction exhibited tunnel mangetoresistance accompanied with rapid changes at coercive forces of the electrodes and the nano-particles.

Original languageEnglish
Pages (from-to)18-20
Number of pages3
JournalJournal of Magnetism and Magnetic Materials
Volume198
DOIs
Publication statusPublished - 1999 Jun 1
Externally publishedYes
EventProceedings of the 1998 3rd International Symposium on Metallic Multilayers (MML-98) - Vancouver, BC, Can
Duration: 1998 Jun 141998 Jun 19

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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