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arXiv · 1207.5905

Superconductivity at 5.4 K in $β$-Bi$_2$Pd

Yoshinori Imai·Fuyuki Nabeshima·Taiki Yoshinaka·Kosuke Miyatani·Ryusuke Kondo·Seiki Komiya·Ichiro Tsukada·Atsutaka Maeda
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Abstract

We investigate bulk superconductivity in a high-quality single crystal of Bi$_2$Pd ($β$-Bi$_2$Pd, space group; I4/mmm) at temperatures less than 5.4 K by exploring its electrical resistivity, magnetic susceptibility, and specific heat. The temperature dependence of the electrical resistivity shows convex-upward behaviors at temperatures greater than 40-50 K, which can be explained by a parallel-resistor model. In addition, we demonstrate that this material is a multiple-band/multiple-gap superconductor based on the temperature dependences of the specific heat and the upper critical field.

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Yoshinori Imai, Fuyuki Nabeshima, Taiki Yoshinaka, Kosuke Miyatani, Ryusuke Kondo, Seiki Komiya, Ichiro Tsukada, Atsutaka Maeda. 2012-10-29. Superconductivity at 5.4 K in $β$-Bi$_2$Pd. https://doi.org/10.1143/jpsj.81.113708

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