s-wave pairing in the optimally-doped LaO0.5F0.5BiS2 superconductor

G. Lamura; T. Shiroka; P. Bonfa; S. Sanna; R. De Renzi; C. Baines; H. Luetkens; J. Kajitani; Y. Mizuguchi; O. Miura; K. Deguchi; S. Demura; Y. Takano; M. Putti

doi:10.1103/PhysRevB.88.180509

s-wave pairing in the optimally-doped LaO0.5F0.5BiS2 superconductor

Superconductivity 2016-12-06 v2

Authors: G. Lamura , T. Shiroka , P. Bonfa , S. Sanna , R. De Renzi , C. Baines , H. Luetkens , J. Kajitani , Y. Mizuguchi , O. Miura , K. Deguchi , S. Demura , Y. Takano , M. Putti

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

We report on the magnetic and superconducting properties of LaO0.5F0.5BiS2 by means of zero- (ZF) and transverse-field (TF) muon-spin spectroscopy measurements (uSR). Contrary to previous results on iron-based superconductors, measurements in zero field demonstrate the absence of magnetically ordered phases. TF-uSR data give access to the superfluid density, which shows a marked 2D character with a dominant s-wave temperature behavior. The field dependence of the magnetic penetration depth confirms this finding and further suggests the presence of an anisotropic superconducting gap.

Keywords

LaO0.5F0.5BiS2 s-wave pairing muon-spin spectroscopy superfluid density superconducting gap iron-based superconductors

Cite

@article{arxiv.1311.0457,
  title  = {s-wave pairing in the optimally-doped LaO0.5F0.5BiS2 superconductor},
  author = {G. Lamura and T. Shiroka and P. Bonfa and S. Sanna and R. De Renzi and C. Baines and H. Luetkens and J. Kajitani and Y. Mizuguchi and O. Miura and K. Deguchi and S. Demura and Y. Takano and M. Putti},
  journal= {arXiv preprint arXiv:1311.0457},
  year   = {2016}
}

s-wave pairing in the optimally-doped LaO0.5F0.5BiS2 superconductor

Abstract

Keywords

Cite

Related papers