Giant magnetoresistance in PtMn alloys

M. J. Carey, A. B. Banful, L. Folks, B. A. Gurney, R. F.C. Farrow, A. J. Kellock

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


The giant magnetoresistance in PtMn alloys was studied. It was shown that the onset of chemical and magnetic order in PtMn was accompanied by a large increase in the resistivity, ρ, contrary to that observed in nonmagnetic or ferromagnetic disorder-order transitions. It was observed that the characterstics of the resistance change with anneal time in two regimes, with only the second regime involving a disorder/order transition. The change of ρ with time was used to calculate the activation energy for the L1 0 transformation in PtMn.

Original languageEnglish (US)
Pages (from-to)3097-3099
Number of pages3
JournalApplied Physics Letters
Issue number16
StatePublished - Apr 19 2004
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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