Optimizing the giant magnetoresistance of NiFe/Cu/Co pseudo spin-valves prepared by magnetron sputtering

Amitesh Paul, Thorsten Damm, Daniel E. Bürgler, Simon Stein, Hermann Kohlstedt, Peter Grünberg

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

A study on optimizing the giant magnetoresistance of NiFe/Cu/Co pseudo spin-valves was presented. The puseodo spin-valves were prepared by dc magnetron sputtering and a base pressure of 1×10-7 mbar was achieved by turbomolecular pumps. Magneto-optic kerr-effect measurements revealed different coercive fields and independent switching of the Co and NiFe layers. The reduced coercive field and low GMR ratio indicated that the clustered grain possesed weaker magnetic pinning and increased spin-independent scattering.

Original languageEnglish
Pages (from-to)1905-1907
Number of pages3
JournalApplied Physics Letters
Volume82
Issue number12
DOIs
StatePublished - 24 Mar 2003
Externally publishedYes

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