Experimental evidence for unconventional BCS states in heavy-fermion metals

被引：3

作者：

Steglich, F. ^{[1
]}

Gelbela, C. ^{[1
]}

Grosche, F. M. ^{[2
]}

Loewenhaupt, M. ^{[3
]}

Stockert, O. ^{[1
]}

Wirth, S. ^{[1
]}

Yuan, H. Q. ^{[1
,4
]}

机构：

[1] Max Planck Inst Chem Phys Solids, D-01187 Dresden, Germany

[2] Univ Cambridge Trinity Coll, Cambridge CB2 1TQ, England

[3] Tech Univ Dresden, Inst Solid State Phys, D-01062 Dresden, Germany

[4] LANL, Natl High Magnet Field Lab, Los Alamos, NM 87545 USA

来源：

PHYSICA B-CONDENSED MATTER | 2008年 / 403卷 / 5-9期

关键词：

Kondo effect; heavy fermions; superconductivity; quantum criticality;

D O I：

10.1016/j.physb.2007.10.273

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A variety of unconventional pairing mechanisms seem to be operating in heavy-fermion superconductors. We address briefly Cooper pairing mediated by magnetic excitons in UPd2Al3 and by valence fluctuations in pressurized CeCu2Si2, Moreover, evidence from inelastic neutron scattering for HF superconductivity being mediated by quantum critical spin-density-wave fluctuations in CeCu2Si2 is discussed. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：968 / 972

页数：5

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