Non-Fermi liquid regimes in the low-temperature phase diagrams of the systems U1-xMxPd2Al3 (M = Y, Th)

被引：8

作者：

Maple, MB ^{[1
]}

Amann, A

Dickey, RP

Sirvent, C

de Andrade, MC

Dilley, NR

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

来源：

PHYSICA B-CONDENSED MATTER | 2000年 / 281卷

基金：

美国国家科学基金会;

关键词：

non-Fermi liquid; heavy fermions; Kondo effects;

D O I：

10.1016/S0921-4526(99)01237-5

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Temperature-composition (T-x) phase diagrams and non-Fermi liquid (NFL) characteristics in the electrical resistivity, specific heat, and magnetic susceptibility at low temperatures for the U1-xMxPd2Al3 (M = Y,Th) systems are described. The T-l phase diagrams, the NFL characteristics, and the underlying mechanisms for the NFL behavior exhibit distinct differences for M = Y3+ and Th4+. apparently reflecting the difference in valence of the M atom substituents. and suggesting that U is tetravalent in these two systems. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：332 / 336

页数：5

共 39 条

[1] OBSERVATION OF NON-FERMI-LIQUID BEHAVIOR IN U0.2Y0.8PD3 [J].

ANDRAKA, B ;

TSVELIK, AM .

PHYSICAL REVIEW LETTERS, 1991, 67 (20) :2886-2889

[2] 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

[3] Enhancement of magnetic fluctuations on passing below Tc in the heavy fermion superconductor UPd2Al3 [J].

Bernhoeft, N ;

Sato, N ;

Roessli, B ;

Aso, N ;

Hiess, A ;

Lander, GH ;

Endoh, Y ;

Komatsubara, T .

PHYSICAL REVIEW LETTERS, 1998, 81 (19) :4244-4247

[4] 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

[5]

COLEMAN P, 1996, J PHYS CONDENS MATTE, V8

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

COX, DL .

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

[7] SUPERCONDUCTING AND MAGNETIC-PROPERTIES OF THE HEAVY-FERMION COMPOUNDS UT2AL3(T=NI,PD) [J].

DALICHAOUCH, Y ;

DEANDRADE, MC ;

MAPLE, MB .

PHYSICAL REVIEW B, 1992, 46 (13) :8671-8674

[8] ALLOYING STUDIES IN U1-XTHXPD2AL3 (0-LESS-THAN-OR-EQUAL-TO-X-LESS-THAN-OR-EQUAL-TO-1) [J].

DALICHAOUCH, Y ;

MAPLE, MB .

PHYSICA B, 1994, 199 :176-177

[9] Evidence for a common physical description of non-Fermi-liquid behavior in chemically substituted f-electron systems [J].

de Andrade, MC ;

Chau, R ;

Dickey, RP ;

Dilley, NR ;

Freeman, EJ ;

Gajewski, DA ;

Maple, MB .

PHYSICAL REVIEW LETTERS, 1998, 81 (25) :5620-5623

[10]

DICKEY RP, UNPUB

← 1 2 3 4 →