Magnetic and structural phase transformations in DyB6 under high pressure

被引：0

作者：

Sakai, T ^{[1
]}

Oomi, G ^{[1
]}

Kunii, S ^{[1
]}

机构：

[1] Ariake Natl Coll Technol, Omuta, Fukuoka 8368585, Japan

来源：

JAPAN INSTITUTE OF METALS, PROCEEDINGS, VOL 12, (JIMIC-3), PTS 1 AND 2: SOLID - SOLID PHASE TRANSFORMATIONS | 1999年

关键词：

antiferromagnetism; Jahn-Teller effect; DyB6; electrical resistivity; thermal expansion; high pressure;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetic and structural phase transitions in the single crystalline DyB6 under high pressure have been studied using the electrical resistivity and the thermal expansion measurements. It is revealed that the Neel temperature, T-N (=25 K), increases below 1 GPa, but tends to saturate above 1 GPa. On the other hand, a sharp change in the linear thermal expansion was observed at T*(=30 Ii) at ambient pressure, which is caused by the Jahn-Teller effect. The transition becomes broader above 1 GPa. These facts suggest that the electronic state of DyB6 in the antiferromagnetic phase is strongly affected by the Jahn-Teller effect under high pressure.

引用

页码：377 / 380

页数：4

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