Temperature-dependent magnetic interface location in interdiffused exchange biased bilayers

M. S. Lund, M. R. Fitzsimmons, S. Park, C. Leighton

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The effect of interdiffusion in epitaxial NiMn/Ni bilayers was analyzed. It was observed that competition between antiferromagnetic and ferromagnetic interactions in the interdiffused region lead to a temperature-dependant magnetic interface location. It was found that effective magnetic thickness of the Ni layer reduced on cooling to 10 K. It was also observed that decrease in magnetization with decreasing temperature disappeared for annealed NiMn/Ni layers with low interdiffusion.

Original languageEnglish (US)
Pages (from-to)2845-2847
Number of pages3
JournalApplied Physics Letters
Issue number14
StatePublished - Oct 4 2004

Bibliographical note

Funding Information:
Work at UMN was supported primarily by the NSF MRSEC (DMR-0212302). The facilities of the Manuel Lujan Jr. Neutron Scattering Center are gratefully appreciated. Work at LANL was supported in part by the U.S. DoE, BES-DMS (W-7405-Eng-36), the University of California Campus Laboratory Collaborative program, and Laboratory Directed Research and Development funds.


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