Magnetic and fermi surface properties of ferromagnets EuPd2and EuPt2

Ai Nakamura, Hiromu Akamine, Yousuke Ashitomi, Fuminori Honda, Dai Aoki, Tetsuya Takeuchi, Kazuyuki Matsubayashi, Yoshiya Uwatoko, Yasutomi Tatetsu, Takahiro Maehira, Masato Hedo, Takao Nakama, Yoshichika O. Nuki

研究成果: Contribution to journalArticle査読

2 被引用数 (Scopus)

抄録

We succeeded in growing single crystals of the ferromagnets EuPd2 and EuPt2 with the Laves-type cubic structure by the Bridgman method, namely, heating constituting materials in a Mo crucible up to a high temperature of about 1500 ° C. The ferromagnetic properties of EuPd2 and EuPt2 with Curie temperatures of 74 and 100 K, respectively, were confirmed from the results of electrical resistivity, specific heat, and magnetization measurements. The ordered moment is 7 μB =Eu, revealing the Eu-divalent ferromagnetism. The present Eu-divalent electronic state is found to be robust against high pressures of up to 8 GPa and is not changed into the Eu-trivalent state. We also carried out de Haas-van Alphen (dHvA) experiments for EuPd2 . The detected dHvA branches in EuPd2 are well explained by the relativistic linearized augmented plane wave (RLAPW) energy band calculations for SrPd2 , revealing a closed hole Fermi surface and compensated four closed electron Fermi surfaces.

本文言語英語
論文番号084705
ジャーナルjournal of the physical society of japan
85
8
DOI
出版ステータス出版済み - 8 15 2016
外部発表はい

All Science Journal Classification (ASJC) codes

  • 物理学および天文学(全般)

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