High pressure investigation of superconducting signatures in CeCu2Si2: ac-magnetic susceptibility, ac-heat capacity, resistivity and thermopower

被引：4

作者：

Giriat, G. ^{[1
]}

Ren, Z. ^{[1
]}

Pedrazzini, P. ^{[2
,3
]}

Jaccard, D. ^{[1
]}

机构：

[1] Univ Geneva, DQMP, CH-1211 Geneva 4, Switzerland

[2] Ctr Atom Bariloche CNEA, Lab Bajas Temp, RA-8400 San Carlos De Bariloche, Rio Negro, Argentina

[3] Ctr Atom Bariloche CNEA, Inst Balseiro, RA-8400 San Carlos De Bariloche, Rio Negro, Argentina

来源：

SOLID STATE COMMUNICATIONS | 2015年 / 209卷

基金：

瑞士国家科学基金会;

关键词：

CeCu; Superconductivity; Magnetic susceptibility; High pressure;

D O I：

10.1016/j.ssc.2015.03.007

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Taking advantage of a novel multiprobe setup we have measured, on a unique sample, the ac-magnetic susceptibility, the resistivity, the ac-specific heat and the thermopower of the superconductor heavy fermion CeCu2Si2 under pressure up to 5.1 GPa. At the superconducting transition temperature T-c, the Meissner signal corresponds to that expected for the sample volume and coincides with the specific heat jump and the resistive transition completion temperatures. Differing from previous observations, here the susceptibility measurements did not reveal any anomaly in the vicinity of the resistive transition onset. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：55 / 58

页数：4

共 25 条

[1] Susceptibility measurements at high pressures using a microcoil system in an anvil cell [J].