Unified treatment of theory on magnetic properties of FeGe and FeSi

Yuki Yanagi, Kazuo Ueda

研究成果: Article査読

5 被引用数 (Scopus)

抄録

The magnetic properties of FeGe and FeSi are studied in a unified way on the basis of the realistic model derived from the first principle calculations. We can show that, with decreasing the temperature, the transition from the paramagnetic metallic state to the ferromagnetic metallic state takes place for FeGe, while the transition of FeSi from the paramagnetic metal to the paramagnetic insulator is a continuous crossover, consistent with experiments. It is shown that the distinct magnetic behaviors in FeGe and FeSi are attributed to the difference of the strength of the electron correlation effects, controlled by the effective bandwidth.

本文言語English
論文番号045125
ジャーナルPhysical Review B
93
4
DOI
出版ステータスPublished - 2016 1月 21
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

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