Upper critical field of the noncentrosymmetric superconductor BiPd

Publikation: Beitrag in FachzeitschriftForschungsartikelBeigetragenBegutachtung

Beitragende

  • Darren C. Peets - , Max-Planck-Institut für Festkörperforschung, Seoul National University (Erstautor:in)
  • Ana Maldonado - (Autor:in)
  • Mostafa Enayat - (Autor:in)
  • Peter Wahl - (Autor:in)
  • Andreas P. Schnyder - (Autor:in)

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.

Details

OriginalspracheEnglisch
Aufsatznummer174504
FachzeitschriftPhys. Rev. B
Jahrgang93
PublikationsstatusVeröffentlicht - 10 Mai 2016
Peer-Review-StatusJa
Extern publiziertJa

Externe IDs

Scopus 84968867045

Schlagworte