Low temperature properties of spin valves with extremely thin IrMn

J. C. Eckert*, N. P. Stern, A. E. Barton, D. A. Mann, P. D. Sparks, M. J. Carey

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

The properties of IrMn spin valves with t IrMn≤26Å are explored at temperatures down to 5 K. The structure is: Ti(50Å)/ NiFe(40Å)/Co(8Å)/Cu(30Å)/Co(30Å)/IrMn(tÅ)/ Ti(50Å) on a Si substrate. The low temperature giant magnetoresistance(GMR) is not greatly affected by the thickness of the IrMn. The thinner the IrMn, the lower the temperature at which the GMR is adversely affected. This is consistent with a reduction in blocking temperature. A number of interesting features in the coercivity and field training are IrMn thickness dependent.

Original languageEnglish (US)
Pages (from-to)8569-8571
Number of pages3
JournalJournal of Applied Physics
Volume91
Issue number10 I
DOIs
StatePublished - May 15 2002

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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