Origin of ferromagnetism of MnSi1.7 nanoparticles in Si: First-principles calculations

Shin Yabuuchi, Hiroyuki Kageshima, Yukinori Ono, Masao Nagase, Akira Fujiwara, Eiji Ohta

研究成果: Article査読

22 被引用数 (Scopus)

抄録

The origin of the magnetism of MnSi1.7 nanoparticles in Si is investigated using the first-principles calculations: bulk and interface effects are considered. The bulk magnetic property is expected to be affected by stoichiometry, strain, and charge accumulation. Stoichiometry and charge accumulation induce a ferromagnetic state, and strain stabilizes the ferromagnetic state. Another factor, the MnSi1.7 /Si interface formation, is seen as triggering ferromagnetism strongly localized at the interface. These two mechanisms are shown to be related to the experimentally determined hard and soft components, respectively.

本文言語English
論文番号045307
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
78
4
DOI
出版ステータスPublished - 2008 7 11
外部発表はい

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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