An unconventional metallic state in YbRh2(Si1-xGex)2 -: a high pressure study

被引：31

作者：

Mederle, S

Borth, R

Geibel, C

Grosche, FM

Sparn, G

Trovarelli, O

Steglich, F

机构：

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

[2] Univ London Royal Holloway & Bedford New Coll, Egham TW20 0EX, Surrey, England

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2002年 / 14卷 / 44期

关键词：

Alloying - Doping (additives) - Electric conductivity - Electronic properties - Fermi liquids - Hydrostatic pressure - Magnetism - Magnetization - Phase diagrams - Phase transitions - Single crystals - Specific heat;

D O I：

10.1088/0953-8984/14/44/367

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We present a detailed pressure study of the electrical resistivity p(T) and the specific heat C(T) of the non-Fermi-liquid (NFL) compound YbRh2Si2, and of p(T) for a single crystal in which 5 at.% of Si is replaced by isoelectronic Ge. The magnetic phase diagram is deduced up to p congruent to 2.5 GPa. A comparison of the effects of the volume change introduced by doping and/or by hydrostatic pressure will be given. We show that the NFL behaviour observed in p (T) as well as the magnetic phase diagram are not influenced by the disorder introduced by alloying.

引用

页码：10731 / 10736

页数：6

共 11 条

[1] GROWTH OF SINGLE-CRYSTALS FROM METALLIC FLUXES [J].