We report on the Eliashberg analysis of the electrodynamic response of Ba(Fe 1−x Rh x ) 2 As 2 single crystals across the disorder-induced s ± to s ++ transition. We previously experimentally identified the transition by its signature in the low temperature value of the penetration depth and observed a peculiar dependency of the critical temperature on disorder; subsequently, we proposed new hallmarks in the quasiparticle conductivity and surface impedance. Here we show that this whole set of data can be self consistently reproduced within an effective two-bands Eliashberg model with disorder treated beyond the Born approximation and with a small set of input parameters.
Eliashberg Analysis of the Electrodynamic Response of Ba(Fe1−xRhx)2As2 Across the s± to s++ Order Parameter Transition / Torsello, Daniele; Ummarino, Giovanni Alberto; Gerbaldo, Roberto; Gozzelino, Laura; Ghigo, Gianluca. - In: JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM. - ISSN 1557-1939. - ELETTRONICO. - (2019).
Titolo: | Eliashberg Analysis of the Electrodynamic Response of Ba(Fe1−xRhx)2As2 Across the s± to s++ Order Parameter Transition |
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Data di pubblicazione: | 2019 |
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Digital Object Identifier (DOI): | http://dx.doi.org/10.1007/s10948-019-05368-2 |
Appare nelle tipologie: | 1.1 Articolo in rivista |
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Torsello_superstripes2019.pdf | Articolo principale | 2. Post-print / Author's Accepted Manuscript | PUBBLICO - Tutti i diritti riservati | Visibile a tuttiVisualizza/Apri |
Torsello2019_Article_EliashbergAnalysisOfTheElectro.pdf | 2a Post-print versione editoriale / Version of Record | Non Pubblico - Accesso privato/ristretto | Administrator Richiedi una copia |
http://hdl.handle.net/11583/2777654