Exchange anisotropy effects in NiFe layers and NiFe/Cr multilayers

K. O'Grady, S. J. Greaves, S. M. Thompson

Research output: Contribution to journalConference articlepeer-review

11 Citations (Scopus)

Abstract

We report on a study of the magnetic properties of NiFe/Cr multilayer systems deposited on Si substrates. A significant shift and an anomalous discontinuity on one side of the hysteresis loop at 4 K are observed. The loops become symmetrical above 15 K. We interpret our data on the basis that the top NiFe layer is partially oxidised and antiferromagnetic leading to an exchange anisotropy within the layer. The effect of a silver layer on the top surface of the multilayer is to prevent the oxidation of the NiFe which causes this effect.

Original languageEnglish
Pages (from-to)253-254
Number of pages2
JournalJournal of Magnetism and Magnetic Materials
Volume156
Issue number1-3
DOIs
Publication statusPublished - 1996 Jan 1
Externally publishedYes
EventProceedings of the 1995 2nd International Symposium on Metallic Multilayers, MML - Cambridge, UK
Duration: 1995 Sep 111995 Sep 14

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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