Experimental data from the recently discovered iron-based superconductor (IBS) KCaFeAsF is analyzed within a realistic five-band Eliashberg model with coupling provided by antiferromagnetic spin fluctuations. Fundamental parameters are deduced from available angle resolved photoemission spectoscopy (ARPES) and ab-initio density functional theory (DFT) data, and several physical properties are calculated: critical temperature, upper critical field, gap values, resistivity and superfluid density. This procedure, usually extremely successful in IBSs, highlights the peculiar behavior of this new compound in which s and d -wave character might coexist and where the electron band is close to vanish.
Five gaps Eliashberg model for KCa2Fe4As4F2: relevance of the electronic band / Alberto Ummarino, Giovanni; Torsello, Daniele. - In: PHYSICA. C, SUPERCONDUCTIVITY. - ISSN 0921-4534. - ELETTRONICO. - 588:(2021), p. 1353920. [10.1016/j.physc.2021.1353920]
Titolo: | Five gaps Eliashberg model for KCa2Fe4As4F2: relevance of the electronic band | |
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Data di pubblicazione: | 2021 | |
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Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/j.physc.2021.1353920 | |
Appare nelle tipologie: | 1.1 Articolo in rivista |
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http://hdl.handle.net/11583/2914829