Low temperature ferromagnetism in the new diluted magnetic semiconductor p-Bi2-xFexTe3

Vladimir A. Kulbachinskii, Alexander Yu Kaminsky, Koichi Kindo, Yasuo Narumi, Ken Ichi Suga, Petr Lostak, Petr Svanda

研究成果: Article査読

7 被引用数 (Scopus)

抄録

Single crystals of the new diluted magnetic semiconductor of p-Bi 2-xFexTe3 (0≤x≤0.08) and n-Bi 2-xFexSe3 (0≤x≤0.06) have been synthesized. The ferromagnetic phase was found at a temperature Tc which increases with Fe content x up to Tc = 12 K for x = 0.08 in p-Bi2-xFexTe3. The easy-axis for magnetization is parallel to the C3 crystallographic axis. In n-type samples Bi2-xFexSe3 ferromagnetic transition was not found down to 2 K. The de Haas-van Alphen effect was observed in p-Bi 2-xFexTe3. The Shubnikov-de Haas (SdH) effect was investigated in both types of samples. Frequency of oscillation decreases with Fe doping in p-Bi2-xFexTe3 and increases in n-Bi2-xFexSe3. Thus Fe atoms exhibit donor properties.

本文言語English
ページ(範囲)1251-1252
ページ数2
ジャーナルPhysica B: Condensed Matter
329-333
II
DOI
出版ステータスPublished - 2003 5月
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
  • 電子工学および電気工学

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