Ferromagnetism in germanium clathrate: Ba8Mn2Ge44

Tetsuji Kawaguchi, Katsumi Tanigaki, Masahiro Yasukawa

研究成果: Article査読

47 被引用数 (Scopus)

抄録

A unique magnetic nanosystem, constructed from Ge20 dodecahedrons and Mn, is presented, which shows a ferromagnetic transition around 10 K. In this system with the formula Ba8MnxGe46-x (x = 1-2), the Mn atoms can be incorporated with accurate control in position of the crystal lattice. The spontaneous magnetization is approximately linearly proportional to the amount of Mn introduced and is maximized at x = 2. Magnetic measurements reveal that the d electrons are almost localized on Mn atoms but also affected by conduction electrons spreading over the clathrate network.

本文言語English
ページ(範囲)3438-3440
ページ数3
ジャーナルApplied Physics Letters
77
21
DOI
出版ステータスPublished - 2000 11月 20
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(その他)

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