Superconductivity in non-centrosymmetric BiPd system

Details Superconductivity in non-centrosymmetric BiPd system Superconductivity in non-centrosymmetric BiPd system

2011-04-04

arxiv.org/abs/1104.0633v1

Physics

Condensed Matter

Superconductivity

6 pages; 6 figures. Submitted to Phys. Rev. B

Scientific paper

In this work, we establish the bulk superconductivity of a high quality sample of monoclinic BiPd ($\alpha$-BiPd, space group P2$_1$) below 3.87 K by studying its electrical resistivity, magnetic susceptibility and heat capacity. We show that it is clean type-II superconductor with moderate electron-phonon coupling and determine its superconducitng and normal state parameters. Although $\alpha$-BiPd is a noncentrosymmetric superconductor with large electronic heat capacity (therefore, large $\gamma$), the effect of spin-orbit splitting of the electronic bands at the Fermi level is small. This makes little influence on the superconducting properties of $\alpha$-BiPd.

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