Strain enhancement of superconductivity in CePd2Si2 under pressure

被引：31

作者：

Demuer, A ^{[1
]}

Holmes, AT ^{[1
]}

Jaccard, D ^{[1
]}

机构：

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

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2002年 / 14卷 / 28期

关键词：

D O I：

10.1088/0953-8984/14/28/102

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We report resistivity and calorimetric measurements on two single crystals of CePd2Si2 pressurized up to 7.4 GPa. A weak uniaxial stress induced in the pressure cell demonstrates the sensitivity of the physics to anisotropy. Stress applied along the c-axis extends the whole phase diagram to higher pressures and enhances the superconducting phase emerging around the magnetic instability, with a 40% increase of the maximum superconducting temperature, T-c, and a doubled pressure range. Calorimetric measurements demonstrate the bulk nature of the superconductivity.

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页码：L529 / L535

页数：7

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