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arxiv cond-mat/0202390 v1 pith:JEOAVHXM submitted 2002-02-22 cond-mat.str-el cond-mat.supr-con

Strain enhancement of superconductivity in CePd2Si2 under pressure

A. Demuer , A. T. Holmes , D. Jaccard This is my paper
classification cond-mat.str-el cond-mat.supr-con
keywords pressurecalorimetriccepd2si2measurementsphasestresssuperconductingsuperconductivity
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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, Tc, and a doubled pressure range. Calorimetric measurements demonstrate the bulk nature of the superconductivity.

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