Global magnetic phase diagram and local quantum criticality in heavy fermion metals

被引:119
作者
Si, Qimiao [1 ]
机构
[1] Rice Univ, Dept Phys & Astron, Houston, TX 77005 USA
基金
美国国家科学基金会;
关键词
quantum criticality; fermi surface; non-fermi liquid; heavy fermions;
D O I
10.1016/j.physb.2006.01.156
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
We address the global magnetic phase diagram of Kondo lattice systems. Through the distinct Fermi surface properties of the various phases at zero temperature, we argue that the phase diagram supports two quantum critical point (QCP) classes. One of these describes a direct transition from a magnetic metal phase with localized f-electrons to a paramagnetic one with itinerant f-electrons. This result provides the context for the picture of local quantum criticality, in which the Fermi surface jumps across the QCP and the quasiparticle residue vanishes as the QCP is approached from either side. Some of the unusual experiments, concerning the phases and QCPs of heavy fermion metals, are discussed from the present perspective. These developments have implications in broader contexts. In particular, they form a part of the growing evidence for quantum criticality that goes beyond the orthodox description in terms of order-parameter fluctuations. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:23 / 27
页数:5
相关论文
共 48 条
[1]   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
[2]   REVIEW OF TECHNIQUES IN THE LARGE-N EXPANSION FOR DILUTE MAGNETIC-ALLOYS [J].
BICKERS, NE .
REVIEWS OF MODERN PHYSICS, 1987, 59 (04) :845-939
[3]   Anisotropic Hall effect in single-crystal heavy-fermion YbAgGe [J].
Bud'ko, SL ;
Morosan, E ;
Canfield, PC .
PHYSICAL REVIEW B, 2005, 71 (05)
[4]  
Coleman P, 2003, ACTA PHYS POL B, V34, P691
[5]   The break-up of heavy electrons at a quantum critical point [J].
Custers, J ;
Gegenwart, P ;
Wilhelm, H ;
Neumaier, K ;
Tokiwa, Y ;
Trovarelli, O ;
Geibel, C ;
Steglich, F ;
Pépin, C ;
Coleman, P .
NATURE, 2003, 424 (6948) :524-527
[6]   Further pressure studies around the magnetic instability of CePd2Si2 [J].
Demuer, A ;
Jaccard, D ;
Sheikin, I ;
Raymond, S ;
Salce, B ;
Thomasson, J ;
Braithwaite, D ;
Flouquet, J .
JOURNAL OF PHYSICS-CONDENSED MATTER, 2001, 13 (41) :9335-9348
[7]   KONDO LATTICE AND WEAK ANTIFERROMAGNETISM [J].
DONIACH, S .
PHYSICA B & C, 1977, 91 (JUL) :231-234
[8]   Metallurgical and tow-temperature electronic properties of M1-xUxPd3 (M=Sc, Y, La) alloys [J].
Gajewski, DA ;
Chau, R ;
Maple, MB .
PHYSICAL REVIEW B, 2000, 62 (09) :5496-5502
[9]   Locally critical point in an anisotropic Kondo lattice [J].
Grempel, DR ;
Si, QM .
PHYSICAL REVIEW LETTERS, 2003, 91 (02) :1-026401
[10]   Superconductivity on the threshold of magnetism in CePd2Si2 and CeIn3 [J].
Grosche, FM ;
Walker, IR ;
Julian, SR ;
Mathur, ND ;
Freye, DM ;
Steiner, MJ ;
Lonzarich, GG .
JOURNAL OF PHYSICS-CONDENSED MATTER, 2001, 13 (12) :2845-2860