Upper critical field of the noncentrosymmetric superconductor BiPd

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Title
Upper critical field of the noncentrosymmetric superconductor BiPd
Author(s)
Darren C. Peets; Maldonado, A; Enayat, M; Sun, ZX; Wahl, P; Schnyder, AP
Publication Date
2016-05
Journal
PHYSICAL REVIEW B, v.93, no.17, pp.174504 -
Publisher
AMER PHYSICAL SOC
Abstract
The superconducting parameters and upper critical field of the noncentrosymmetric superconductor BiPd have proven contentious. This material is of particular interest because it is a rare example of a 4f -electron-free noncentrosymmetric superconductor of which crystals may be grown and cleaved, enabling surface-sensitive spectroscopies. Here, using bulk probes augmented by tunneling data on defects, we establish that the lower of the previously reported upper critical fields corresponds to the bulk transition. The material behaves as a nearly weak-coupled BCS s-wave superconductor, and we report its superconducting parameters as drawn from the bulk upper critical field. Possible reasons behind the order-of-magnitude discrepancy in the reported upper critical fields are discussed. (c) 2016 American Physical Society
URI
https://pr.ibs.re.kr/handle/8788114/2824
ISSN
2469-9950
Appears in Collections:
Center for Correlated Electron Systems(강상관계 물질 연구단) > Journal Papers (저널논문)
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