Giant magnetoresistance and low saturation fields in Co-Fe/Cu multilayers

K. Inomata, Y. Saito

Research output: Contribution to journalArticlepeer-review

35 Citations (Scopus)

Abstract

We have investigated the magnetoresistive properties of CoxFe1-x/Cu multilayers with different CoxFe1-x and Cu thicknesses, prepared on MgO(110) substrates using ion beam sputtering. The MR ratio for Co9Fe/Cu multilayers was significantly larger than that for Co/Cu multilayers. The MR ratio oscillates for Cu layer thickness with a 12 Å period for all the multilayers investigated. The Cu intervening magnetic layer coupling depends on the Co concentration and has a broad maximum around x = 0.8. The uniaxial anisotropy induced by epitaxial growth in the multilayers on MgO(110) substrates led to a low saturation field and quite a small field change ΔH needed for giant magnetoresistance. An MR ratio of 16% was attained for ΔH = 50 Oe at room temperature.

Original languageEnglish
Pages (from-to)425-429
Number of pages5
JournalJournal of Magnetism and Magnetic Materials
Volume126
Issue number1-3
DOIs
Publication statusPublished - 1993 Sep
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Giant magnetoresistance and low saturation fields in Co-Fe/Cu multilayers'. Together they form a unique fingerprint.

Cite this