Heat treatment effect on the magnetic properties and martensitic transformations of MnCoGe

Kohei Noguchi, Ryota Kobayashi, Yoshifuru Mitsui, Rie Y. Umetsu, Jun Gouchi, Yoshiya Uwatoko, Keiichi Koyama

研究成果: Article査読

1 被引用数 (Scopus)

抄録

X-ray powder diffraction, differential scanning calorimetry, and magnetization measurements were performed to investigate the effects of heat treatment on the magnetic and structural properties of as-cast and aging treated MnCoGe. The martensitic transformation temperature of the as-cast sample was 526 K for its first heating cycle, which decreased with repeating thermal cycles of 300–1273 K. MnCoGe prepared by aging treatment of 873 K for 7 days showed a first-order magnetic transition, which was accompanied by a martensitic transformation at 307 K. However, the transformation was not detected when the aging temperature was increased up to 973 K. The martensitic transformation temperature and volume of the parent phase was found to have a positive correlation.

本文言語English
論文番号166199
ジャーナルJournal of Magnetism and Magnetic Materials
499
DOI
出版ステータスPublished - 2020 4 1

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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