Magnetic phases in an amorphous Ge63Fe37 thin film

S. H. Song, M. H. Jung, Sang Ho Lim

Research output: Contribution to journalArticle

Abstract

Magnetic phases of an amorphous Ge63Fe37 amorphous thin film, fabricated by thermal co-evaporation onto oxidized Si at room temperature, are investigated. Various magnetic measurements show ferromagnetic ordering even at room temperature and a spin glass phase below 20 K. A scaling analysis of the spin glass phase indicates the existence of long-range exchange interactions, providing evidence of a large number of carriers in an amorphous diluted magnetic semiconductor.

Original languageEnglish
JournalJournal of Magnetism and Magnetic Materials
Volume310
Issue number2 SUPPL. PART 3
DOIs
Publication statusPublished - 2007 Mar 1

Keywords

  • Amorphous Ge-Fe alloy
  • Ferromagnetic ordering
  • Magnetic thin film
  • Spin glass

ASJC Scopus subject areas

  • Condensed Matter Physics

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