Are heavy-fermion metals Fermi liquids?

被引：62

作者：

Steglich, F

Gegenwart, P

Helfrich, R

Langhammer, C

Hellmann, P

Donnevert, L

Geibel, C

Lang, M

Sparn, G

Assmus, W

Stewart, GR

Ochiai, A

机构：

[1] MAX PLANCK INST CHEM PHYS FESTER STOFFE, D-01187 DRESDEN, GERMANY

[2] UNIV FRANKFURT, INST PHYS, D-60325 FRANKFURT, GERMANY

[3] UNIV AUGSBURG, INST PHYS, D-86159 AUGSBURG, GERMANY

[4] NIIGATA UNIV, FAC ENGN, DEPT MAT SCI & TECHNOL, NIIGATA 95021, JAPAN

来源：

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER | 1997年 / 103卷 / 02期

关键词：

D O I：

10.1007/s002570050366

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We present the results of specific-heat and resistivity measurements as a function of temperature, magnetic field and hydrostatic pressure on the Kondo lattice CeNi2Ge2, the heavy-fermion superconductors CeCu2Si2 and UBe13 as well as the low-carrier-density system Yb(4)AS(3) ''Non-Fermi-liquid'' effects in the low-temperature normal-state properties of the three former systems are consistent with the existence of a ''nearby'' quantum critical point, presumably of antiferromagnetic type. Yb(4)AS(3), though showing the outward appearance of a Landau-type heavy-fermion metal, behaves very differently, i.e. as an extreme two-fluid system.

引用

页码：235 / 242

页数：8

共 67 条

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