Superconductivity at 5.4 K in β-Bi 2Pd

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

doi:10.1143/JPSJ.81.113708

Superconductivity at 5.4 K in β-Bi ₂Pd

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

Research output: Contribution to journal › Article › peer-review

49 Citations (Scopus)

Abstract

We investigate bulk superconductivity in a high-quality single crystal of Bi2Pd (β-Bi ₂Pd; space group: I4=mmm) with a superconducting transition temperature of 5.4K, by exploring its electrical resistivity, magnetic susceptibility, and specific heat. The temperature dependence of the electrical resistivity shows convex-upward behavior at temperatures greater than 40-50 K, which can be explained using a parallel-resistor model. In addition, the temperature dependences of the upper critical magnetic field and the specific heat suggest that β-Bi ₂Pd is a multiple-band/ multiplegap superconductor.

Original language	English
Article number	113708
Journal	journal of the physical society of japan
Volume	81
Issue number	11
DOIs	https://doi.org/10.1143/JPSJ.81.113708
Publication status	Published - 2012 Nov
Externally published	Yes

Keywords

Electrical resistivity
Multiple superconducting gaps
Parallel-resistor model
Pd-Bi alloys
Specific heat
Superconductivity
Upper critical field
β-Bi Pd

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1143/JPSJ.81.113708

Cite this

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title = "Superconductivity at 5.4 K in β-Bi 2Pd",

abstract = "We investigate bulk superconductivity in a high-quality single crystal of Bi2Pd (β-Bi 2Pd; space group: I4=mmm) with a superconducting transition temperature of 5.4K, by exploring its electrical resistivity, magnetic susceptibility, and specific heat. The temperature dependence of the electrical resistivity shows convex-upward behavior at temperatures greater than 40-50 K, which can be explained using a parallel-resistor model. In addition, the temperature dependences of the upper critical magnetic field and the specific heat suggest that β-Bi 2Pd is a multiple-band/ multiplegap superconductor.",

keywords = "Electrical resistivity, Multiple superconducting gaps, Parallel-resistor model, Pd-Bi alloys, Specific heat, Superconductivity, Upper critical field, β-Bi Pd",

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T1 - Superconductivity at 5.4 K in β-Bi 2Pd

AU - Imai, Yoshinori

AU - Nabeshima, Fuyuki

AU - Yoshinaka, Taiki

AU - Miyatani, Kosuke

AU - Kondo, Ryusuke

AU - Komiya, Seiki

AU - Tsukada, Ichiro

AU - Maeda, Atsutaka

PY - 2012/11

Y1 - 2012/11

N2 - We investigate bulk superconductivity in a high-quality single crystal of Bi2Pd (β-Bi 2Pd; space group: I4=mmm) with a superconducting transition temperature of 5.4K, by exploring its electrical resistivity, magnetic susceptibility, and specific heat. The temperature dependence of the electrical resistivity shows convex-upward behavior at temperatures greater than 40-50 K, which can be explained using a parallel-resistor model. In addition, the temperature dependences of the upper critical magnetic field and the specific heat suggest that β-Bi 2Pd is a multiple-band/ multiplegap superconductor.

AB - We investigate bulk superconductivity in a high-quality single crystal of Bi2Pd (β-Bi 2Pd; space group: I4=mmm) with a superconducting transition temperature of 5.4K, by exploring its electrical resistivity, magnetic susceptibility, and specific heat. The temperature dependence of the electrical resistivity shows convex-upward behavior at temperatures greater than 40-50 K, which can be explained using a parallel-resistor model. In addition, the temperature dependences of the upper critical magnetic field and the specific heat suggest that β-Bi 2Pd is a multiple-band/ multiplegap superconductor.

KW - Electrical resistivity

KW - Multiple superconducting gaps

KW - Parallel-resistor model

KW - Pd-Bi alloys

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