Magnetoresistance of magnetic multilayers at high pressure

G. Oomi, T. Sakai, Y. Uwatoko, K. Takanashi, H. Fujimori

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

In the present work we report the effect of pressure on the giant magnetoresistance (GMR) of several magnetic multilayers (MML). First, we show the experimental results of the effect of pressure on the electrical resistance and magnetoresistance (MR) of Fe/Cr MML having different thickness of Cr layers tCr. It is found that the GMR of the samples near the first peak (tCr = 9.5 and 11 Å) is affected strongly by applying pressure reflecting the unstable electronic structure but the effect of pressure on the MR of the sample between peaks (tCr = 15.2 Å) is very small. The saturation field Hs of Fe/Cr MML increases with pressure. These results are compared with those of other MMLs such as Fe/Cu and Co/Cu systems. Finally, the importance of the magnetic state in the paramagnetic layers or interfacial roughness is pointed out to understand the results in the present work.

Original languageEnglish
Pages (from-to)19-28
Number of pages10
JournalPhysica B: Condensed Matter
Volume239
Issue number1-2
DOIs
Publication statusPublished - 1997 Aug 1

Keywords

  • Giant magnetoresistance
  • High pressure
  • Magnetic multilayer

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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