Local and nonlocal magnetic behavior of dilute manganese-doped nickel alloys

K. R. Podolak, R. F. Willis, M. J. Wilson, P. E. Schiffer, T. A. Norman, K. N. Altmann

Research output: Contribution to journalArticlepeer-review

Abstract

We report magnetic behavior of a dilute ferromagnetic alloy Ni 1-x Mnx, 0<x<25%. Magnetic circular dichroism (MCD) is used to examine the local magnetic moment on each element, and superconducting quantum interference device magnetometry is used to evaluate the magnetization of the alloy as a whole. Both MCD and hysteresis loops show a collapse in moment at x≈15% measured at 100 K. The Mn doping appears to disturb the long-range ordering of the host nickel spins which, in the concentration range studied, is a precursor disordered ferromagnet prior to a spin-glass phase.

Original languageEnglish (US)
Article number083918
JournalJournal of Applied Physics
Volume105
Issue number8
DOIs
StatePublished - 2009
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy

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