Magnetic phase diagrams of Dy 0.8Gd 0.2B 2C 2 with the antiferroquadrupolar ordering in the antiferromagnetic phase

Eiichi Matsuoka, Shoei Ogushi, Yuta Sasaki, Masato Sakata, Kenji Ohoyama, Hideya Onodera

研究成果: Article査読

抄録

Gd substitution for Dy in DyB 2C 2 that undergoes an antiferroquadrupolar (AFQ) ordering at T Q = 24:7K and an antiferromagnetic (AFM) one at T N = 15:3K enhances the AFM interaction and weakens the AFQ interaction. In Dy 0.8Gd 0.2B 2C 2, the AFQ transition occurs at T Q = 17:6K below the AFM one at T N = 19:0 K. However, the strong competition between the AFQ and AFM interactions supresses the development of the AFQ order parameter below T Q and causes an anomalous behavior in field-induced transitions. The magnetic phase diagrams of Dy 0.8Gd 0.2B 2C 2 drawn from the experimental results of specific heat and magnetization have anomalous phase boundaries originating from this competition.

本文言語English
論文番号034724
ジャーナルjournal of the physical society of japan
78
3
DOI
出版ステータスPublished - 2009 3月
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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