Electrodynamic response of Ba(Fe1-xRhx)2As2 across the s+- to s++ order parameter transition

D. Torsello; R. Gerbaldo; L. Gozzelino; M. A. Tanatar; R. Prozorov; P. C. Canfield; G. Ghigo

doi:10.1140/epjst/e2019-800144-1

Electrodynamic response of Ba(Fe1-xRhx)2As2 across the s+- to s++ order parameter transition

Superconductivity 2019-06-21 v1 Materials Science

Authors: D. Torsello , R. Gerbaldo , L. Gozzelino , M. A. Tanatar , R. Prozorov , P. C. Canfield , G. Ghigo

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Abstract

Most iron-based superconductors are characterized by the s+- symmetry of their order parameter, and are expected to go through a transition to the s++ state if enough disorder is introduced. We previously reported the observation of this transition in Ba(Fe1-xRhx)2As2 through a study of the disorder dependence of the critical temperature and low-temperature London penetration depth. In this paper we report on the analysis of the electrodynamic response of the same sample across the transition and we identify peculiarities in the behaviour of the surface resistance and normal conductivity, that can be considered as traces of the transition itself.

Keywords

iron-based superconductors order parameter transition electrodynamic response surface resistance london penetration depth

Cite

@article{arxiv.1906.08478,
  title  = {Electrodynamic response of Ba(Fe1-xRhx)2As2 across the s+- to s++ order parameter transition},
  author = {D. Torsello and R. Gerbaldo and L. Gozzelino and M. A. Tanatar and R. Prozorov and P. C. Canfield and G. Ghigo},
  journal= {arXiv preprint arXiv:1906.08478},
  year   = {2019}
}

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5 pages, 2 figures, 1 table

Electrodynamic response of Ba(Fe1-xRhx)2As2 across the s+- to s++ order parameter transition

Abstract

Keywords

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