Magnetic phase diagram in NdCu4Ag single crystal

Shuai Zhang, Takashi Tayama, Toshio Mizushima, Tomohiko Kuwai, Yosikazu Isikawa*

*この論文の責任著者

研究成果: ジャーナルへの寄稿学術論文査読

3 被引用数 (Scopus)

抄録

The magnetic properties of cubic intermetallic compound NdCu4Ag single crystals were studied in detail through magnetization, susceptibility, specific heat and electrical resistivity measurements. An observed anomaly in C(T) with a sharp peak 26 J/(mol K) at 4.2 K, together with an antiferromagnetic behavior of X(T), indicated that an antiferromagnetic phase transition occurred at this temperature. Anisotropic properties in M(H), X(T), and C(T) at external fields were investigated in directions of [001], [110], and [111], respectively. Two metamagnetic transitions were observed below the Néel temperature TN when a magnetic field was applied in three directions. In all the three directions, TN decreased with an increase in magnetic field and new anomalies induced by a high Hext were observed in both X(T) and C(T), implying that two new magnetic phases coexisted with the antiferromagnetic phase. From the specific heat measurements, it is speculated that the crystalline electric field ground state of Nd3+ (J = 9/2) ions is the G8 quartet for NdCu4Ag. From these anomalies, the magnetic phase diagram of NdCu4Ag was determined.

本文言語英語
論文番号043704
ジャーナルJournal of the Physical Society of Japan
79
4
DOI
出版ステータス出版済み - 2010/04

ASJC Scopus 主題領域

  • 物理学および天文学一般

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