Magnetic properties of MnBi in high magnetic fields and high temperature

Tetsuya Onogi, Keiichi Koyama, Kazuo Watanabe

研究成果: Article査読

8 被引用数 (Scopus)

抄録

Magnetization measurements of polycrystalline MnBi were carried out in magnetic fields up to 10 T and in the temperature range from 300 to 773 K, in order to clarify the magnetic properties under high magnetic fields and high temperature. The magnetic phase transition temperature (T c) at a zero magnetic field is 633 K, which almost linearly increases by 2.3 KT -1 with increasing fields up to 10 T. Furthermore, a metamagnetic transition was observed just above T c, indicating that the phase transition is first order. The magnetic entropy change is estimated to be 14 J kg -1 K -1 for 2 T at T c using Clausius-Clapayron's equation, which is almost constant for magnetic fields up to 10 T.

本文言語English
ページ(範囲)489-493
ページ数5
ジャーナルNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
71
6
DOI
出版ステータスPublished - 2007 6

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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