Giant magnetoresistance in Fe/In multilayers and its anomalous temperature dependence

Zhaogang Zhang, Shenfen Hao, Yong Zhang, Liangmin Wang, Tian Yu, Xingqing Li, Dingguo Li, G. H. Wu, Xixiang Zhang, Qiling Li, Peng Chen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Fe/In multilayers were prepared by the DC magnetron sputtering method, and their electrical and magnetic properties were studied. Negative giant magnetoresistance (GMR) with a maximum of -0.84% at 10 K was observed. The magnitude of GMR and the saturation field (H s ) were found to oscillate with a period about 1.3 nm when varying the thickness of In layers. Atomic force microscope images of samples were taken to investigate the surface morphology. The GMR effect is composed of antiferromagnetic coupling between the neighboring Fe layers and superparamagnetic spins effect at the Fe/In interface. A reduction of the anomalous GMR effect with decreasing temperature is presented.

Original languageEnglish (US)
Pages (from-to)381-384
Number of pages4
JournalSolid State Communications
Volume147
Issue number9-10
DOIs
StatePublished - Sep 1 2008

Keywords

  • A. Multilayers
  • D. Giant magnetoresistance
  • D. Oscillation
  • D. Superparamagnetic spin

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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