Metal-insulator transition under high pressure in PrFe4P12

被引：1

作者：

Hidaka, H ^{[1
]}

Ando, I

Kotegawa, H

Kobayashi, TC

Harima, H

Kobayashi, M

Sugawara, H

Sato, H

机构：

[1] Okayama Univ, Fac Sci, Okayama 7008530, Japan

[2] Osaka Univ, Grad Sch Engn Sci, Toyonaka, Osaka 5678531, Japan

[3] Kobe Univ, Dept Phys, Kobe, Hyogo 6578501, Japan

[4] Tokyo Metropolitan Univ, Dept Phys, Hachioji, Tokyo 1920397, Japan

[5] Univ Tokushima, Fac Integrated Arts & Sci, Tokushima 770, Japan

来源：

PHYSICA B-CONDENSED MATTER | 2005年 / 359卷

关键词：

filled skutterudite; metal-insulator transition;

D O I：

10.1016/j.physb.2005.01.334

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We have studied the electrical resistivity in a skutterudite compound PrFe4P12 under high pressure. An antiferroquadrupolar ordering temperature T-Q decreases monotonously with increasing pressure up to 2.4 GPa. Above 2.4 GPa, the metal-insulator (M-I) transition appears. By applying magnetic field, this M-I transition is suppressed easily and heavy-fermion state is realized. The observed Kondo effect and the field-induced heavy-fermion state at high pressure suggest that the quadrupolar interactions of the f electrons of Pr3+ survive even in the insulator phase. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：886 / 888

页数：3

共 4 条

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