Rare-earth gallium iron glasses. II. Anomalous magnetic hysteresis in alloys based on Pr, Nd, and Sm

S. G. Cornelison, J. G. Zhao, D. J. Sellmyer

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

Giant magnetic coercivity is reported in several metallic glasses of the form (R80G20)100-xFex where R represents Pr, Nd, or Sm, G represents Ga or Au, and 15_etix_eti30. An unusual temperature variation of the coercive field is observed showing peaks at intermediate temperatures (90 K). In contrast to similar glasses based on heavy rare-earth metals, these glasses exhibit significant chemical short-range order and even phase separation as is shown by the Mössbauer effect and other measurements. The results are consistent with a recent theory which predicts that large coercivity can result from the presence of site-to-site variations in magnetic properties.

Original languageEnglish (US)
Pages (from-to)2857-2865
Number of pages9
JournalPhysical Review B
Volume30
Issue number5
DOIs
StatePublished - Jan 1 1984

ASJC Scopus subject areas

  • Condensed Matter Physics

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