Microscopic study of the magnetic coupling in a nanocrystalline soft magnet

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Abstract

The magnetic behaviour of nanosize ferromagnetic bcc granules embedded in an amorphous tissue (i.e., partially crystallized Fe80Zr7B12Cu amorphous alloy) was studied by 57Fe Moessbauer spectroscopy. The results are compared with the bulk counterparts: bcc-Fe and amorphous Fe2B0.625Zr0.375. Size dependent enhancement of the Curie point of the nanosize amorphous phase was not observed. At temperatures well above the Curie point of the amorphous phase superparamagnetic relaxation of the bcc crystallites is observed opening new possibilities to study the anisotropy energy of nanosize ferromagnetic grains.

Original languageEnglish
Pages (from-to)2841-2847
Number of pages7
JournalJournal of Physics Condensed Matter
Volume11
Issue number13
DOIs
Publication statusPublished - Apr 5 1999

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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