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The European Physical Journal Special Topics

, Volume 228, Issue 3, pp 719–723 | Cite as

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

  • Daniele TorselloEmail author
  • Roberto Gerbaldo
  • Laura Gozzelino
  • Makariy A. Tanatar
  • Ruslan Prozorov
  • Paul C. Canfield
  • Gianluca Ghigo
Regular Article
Part of the following topical collections:
  1. Superconductivity and Functional Oxides

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.

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Copyright information

© EDP Sciences, Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Daniele Torsello
    • 1
    • 2
    Email author
  • Roberto Gerbaldo
    • 1
    • 2
  • Laura Gozzelino
    • 1
    • 2
  • Makariy A. Tanatar
    • 3
    • 4
  • Ruslan Prozorov
    • 3
    • 4
  • Paul C. Canfield
    • 3
    • 4
  • Gianluca Ghigo
    • 1
    • 2
  1. 1.Politecnico di Torino, Department of Applied Science and TechnologyTorinoItaly
  2. 2.Istituto Nazionale di Fisica Nucleare, Sezione di TorinoTorinoItaly
  3. 3.Ames Laboratory, US Department of EnergyAmesUSA
  4. 4.Department of Physics & AstronomyIowa State UniversityAmesUSA

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