Nodeless superconductivity in the noncentrosymmetric superconductor BiPd

X. B. Yan; Y. Xu; L. P. He; J. K. Dong; Hwanbeom Cho; D. C. Peets; Je Geun Park; S. Y. Li

doi:10.1088/0953-2048/29/6/065001

Nodeless superconductivity in the noncentrosymmetric superconductor BiPd

X. B. Yan
, Y. Xu
, L. P. He
, J. K. Dong
, Hwanbeom Cho
, D. C. Peets
, Je Geun Park
, S. Y. Li

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

11 Scopus citations

Abstract

We report low-temperature thermal conductivity measurements on high-quality single crystalline α-BiPd, a noncentrosymmetric superconductor with T _c ≃ 3.8 K. In zero magnetic field, the residual linear term κ ₀/T is absent, indicating a full gap and suggesting dominant singlet pairing. Consistent with this picture, κ ₀(H)/T shows weak field dependence in low field, but grows relatively fast in fields above 0.03 T (≃1/5H _c2). Implications for the material's disputed high-field behavior are discussed, and constraints are placed on the previously proposed scenarios.

Original language	English
Article number	065001
Journal	Superconductor Science and Technology
Volume	29
Issue number	6
DOIs	https://doi.org/10.1088/0953-2048/29/6/065001
State	Published - 5 Apr 2016
Externally published	Yes

Keywords

noncentrosymmetric superconductor
superconducting gap structure
thermal conductivity

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10.1088/0953-2048/29/6/065001

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title = "Nodeless superconductivity in the noncentrosymmetric superconductor BiPd",

abstract = "We report low-temperature thermal conductivity measurements on high-quality single crystalline α-BiPd, a noncentrosymmetric superconductor with T c ≃ 3.8 K. In zero magnetic field, the residual linear term κ 0/T is absent, indicating a full gap and suggesting dominant singlet pairing. Consistent with this picture, κ 0(H)/T shows weak field dependence in low field, but grows relatively fast in fields above 0.03 T (≃1/5H c2). Implications for the material's disputed high-field behavior are discussed, and constraints are placed on the previously proposed scenarios.",

keywords = "noncentrosymmetric superconductor, superconducting gap structure, thermal conductivity",

author = "Yan, \{X. B.\} and Y. Xu and He, \{L. P.\} and Dong, \{J. K.\} and Hwanbeom Cho and Peets, \{D. C.\} and Park, \{Je Geun\} and Li, \{S. Y.\}",

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doi = "10.1088/0953-2048/29/6/065001",

language = "英语",

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TY - JOUR

T1 - Nodeless superconductivity in the noncentrosymmetric superconductor BiPd

AU - Yan, X. B.

AU - Xu, Y.

AU - He, L. P.

AU - Dong, J. K.

AU - Cho, Hwanbeom

AU - Peets, D. C.

AU - Park, Je Geun

AU - Li, S. Y.

PY - 2016/4/5

Y1 - 2016/4/5

N2 - We report low-temperature thermal conductivity measurements on high-quality single crystalline α-BiPd, a noncentrosymmetric superconductor with T c ≃ 3.8 K. In zero magnetic field, the residual linear term κ 0/T is absent, indicating a full gap and suggesting dominant singlet pairing. Consistent with this picture, κ 0(H)/T shows weak field dependence in low field, but grows relatively fast in fields above 0.03 T (≃1/5H c2). Implications for the material's disputed high-field behavior are discussed, and constraints are placed on the previously proposed scenarios.

AB - We report low-temperature thermal conductivity measurements on high-quality single crystalline α-BiPd, a noncentrosymmetric superconductor with T c ≃ 3.8 K. In zero magnetic field, the residual linear term κ 0/T is absent, indicating a full gap and suggesting dominant singlet pairing. Consistent with this picture, κ 0(H)/T shows weak field dependence in low field, but grows relatively fast in fields above 0.03 T (≃1/5H c2). Implications for the material's disputed high-field behavior are discussed, and constraints are placed on the previously proposed scenarios.

KW - noncentrosymmetric superconductor

KW - superconducting gap structure

KW - thermal conductivity

UR - https://www.scopus.com/pages/publications/84969764537

U2 - 10.1088/0953-2048/29/6/065001

DO - 10.1088/0953-2048/29/6/065001

M3 - 文章

AN - SCOPUS:84969764537

SN - 0953-2048

VL - 29

JO - Superconductor Science and Technology

JF - Superconductor Science and Technology

IS - 6

M1 - 065001

ER -

Nodeless superconductivity in the noncentrosymmetric superconductor BiPd

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