Evidence for a common physical description of non-Fermi-liquid behavior in chemically substituted f-electron systems

被引：134

作者：

de Andrade, MC ^{[1
]}

Chau, R

Dickey, RP

Dilley, NR

Freeman, EJ

Gajewski, DA

Maple, MB

机构：

[1] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA

[2] Univ Calif San Diego, Inst Pure & Appl Phys Sci, La Jolla, CA 92093 USA

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

[4] Univ Calif Riverside, Dept Phys, Riverside, CA 92521 USA

[5] IBM Corp, Almaden Res Ctr, San Jose, CA 95120 USA

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 25期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.81.5620

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The non-Fermi-liquid (NFL) behavior observed in the low temperature specific heat C(T) and magnetic susceptibility chi(T) of many chemically substituted f-electron systems is analyzed within the context of a recently developed theory based on Griffiths' singularities. Measurements of C(T) and chi(T) in the systems Th1-xUxPd2Al3, Y1-xUxPd3, and UCu5-xMx (M = Pd, Pt) are found to be consistent with C(T)/T proportional to chi(T) proportional to T-1+lambda predicted by this model with lambda < 1 in the NFL regime. These results suggest that the NFL properties observed in a wide variety of disordered f-electron systems can be described within the context of a common physical picture.

引用

页码：5620 / 5623

页数：4

共 22 条

[1] HEAVY-NON-FERMI-LIQUID BEHAVIOR IN U(CU,PD)5 [J].

ANDRAKA, B ;

STEWART, GR .

PHYSICAL REVIEW B, 1993, 47 (06) :3208-3212

[2] NON-FERMI-LIQUID SCALING OF THE MAGNETIC RESPONSE IN UCU5-XPDX (X=1,1.5) [J].

ARONSON, MC ;

OSBORN, R ;

ROBINSON, RA ;

LYNN, JW ;

CHAU, R ;

SEAMAN, CL ;

MAPLE, MB .

PHYSICAL REVIEW LETTERS, 1995, 75 (04) :725-728

[3] COPPER NMR AND THERMODYNAMICS OF UCU5-XPDX - EVIDENCE FOR KONDO DISORDER [J].

BERNAL, OO ;

MACLAUGHLIN, DE ;

LUKEFAHR, HG ;

ANDRAKA, B .

PHYSICAL REVIEW LETTERS, 1995, 75 (10) :2023-2026

[4]

Bevington P., 2002, Data Reduction and Error Analysis for the Physical Sciences, V3rd ed.

[5]

Castro A, UNPUB

[6] Non-fermi liquid behavior and Griffiths phase in f-electron compounds [J].

Castro Neto, AH ;

Castilla, G ;

Jones, BA .

PHYSICAL REVIEW LETTERS, 1998, 81 (16) :3531-3534

[7] Transport and magnetic properties of UCu(5-x)M(x) (M=Pd, Pt) [J].

Chau, R ;

Maple, MB .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1996, 8 (48) :9939-9951

[8]

COLEMAN P, 1996, J PHYS CONDENS MATTE, V8

[9] QUADRUPOLAR KONDO EFFECT IN URANIUM HEAVY-ELECTRON MATERIALS [J].

COX, DL .

PHYSICAL REVIEW LETTERS, 1987, 59 (11) :1240-1243

[10] Comparison of CeRh2Si2 and CeRh2-xRuxSi2 near their magnetic-nonmagnetic boundaries [J].

Graf, T ;

Thompson, JD ;

Hundley, MF ;

Movshovich, R ;

Fisk, Z ;

Mandrus, D ;

Fisher, RA ;

Phillips, NE .

PHYSICAL REVIEW LETTERS, 1997, 78 (19) :3769-3772

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