Possible correlated-electron behavior from quadrupolar fluctuations in PrInAg2

被引：154

作者：

Yatskar, A

Beyermann, WP

Movshovich, R

Canfield, PC

机构：

[1] LOS ALAMOS NATL LAB, LOS ALAMOS, NM 87545 USA

[2] AMES LAB, AMES, IA 50011 USA

[3] IOWA STATE UNIV SCI & TECHNOL, AMES, IA 50011 USA

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.77.3637

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The temperature dependent magnetic susceptibility; specific heat, and electrical resistivity were measured on PrInAg2. A broad peak, which is identified as a Kondo anomaly, is observed in the specific heat at similar to 0.4 K with a strongly enhanced linear contribution at lower temperatures. PrInAg2 is a Pr-based heavy-fermion compound and has one of the largest known Sommerfeld coefficients of similar to 6.5 J/mol K-2. A new type of nonmagnetic interaction between the conduction electrons and the non-Kramers doublet ground state of the Pr3+ ion be responsible for this behavior. Related features are also observed in the susceptibility and resistivity.

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页码：3637 / 3640

页数：4

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