Antiferromagnetic quantum critical point in CeRhIn5-xSnx

被引：26

作者：

Bauer, E. D.

Mixson, D.

Ronning, F.

Hur, N.

Movshovich, R.

Thompson, J. D.

Sarrao, J. L.

Hundley, M. F.

Tobash, P. H.

Bobev, S.

机构：

[1] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[2] Univ Florida, Dept Phys, Gainesville, FL 32611 USA

[3] Univ Delaware, Dept Chem, Newark, DE 19716 USA

来源：

PHYSICA B-CONDENSED MATTER | 2006年 / 378-80卷

关键词：

antiferromagnetic order; non-Fermi liquid behavior; quantum critical point;

D O I：

10.1016/j.physb.2006.01.053

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Measurements of magnetic susceptibility, specific heat, and electrical resistivity have been performed on single crystals of CeRhIn5-xSnx. The antiferromagnetic order at T-N = 3.8 K that occurs in the heavy-fermion pressure-induced superconductor CeRhIn5 is suppressed by Sn substitution at a critical concentration x(c)similar to 0.35. Non-Fermi liquid behavior is observed in the vicinity of x(c) suggesting an antiferromagnetic quantum critical point. The evolution of the antiferromagnetic order, a Schottky anomaly centered around 3 K attributed to short-range magnetic correlations, and non-Fermi liquid behavior in CeRhIn5-xSnx indicates a localized/itinerant crossover of the Ce f electrons, similar to the one that occurs in CeRhIn5 at applied pressure. (c) 2006 Elsevier B.V. All rights reserved.

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页码：142 / 143

页数：2

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