Electronic vortex structure of Fe-based superconductors: application to LiFeAs

Detailed tunneling spectroscopy of vortex core states can provide important insight to the momentum structure of the superconducting order parameter. We present a theoretical study of vortex bound states in iron-based superconductors by use of a realistic five-band model relevant to these systems, a...

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Bibliographic Details
Published inarXiv.org
Main Authors B Mencia Uranga, Gastiasoro, Maria N, Andersen, Brian M
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 14.03.2016
Subjects
Apexes
Bias
Dependence
Iron
Order parameters
Physics - Superconductivity
Resistance
Superconductivity
Variations
Vortices
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Summary:Detailed tunneling spectroscopy of vortex core states can provide important insight to the momentum structure of the superconducting order parameter. We present a theoretical study of vortex bound states in iron-based superconductors by use of a realistic five-band model relevant to these systems, and superconductivity stabilized by spin-fluctuation generated pairing vertices yielding an \(s\pm\) gap structure. The computed local density of states agrees remarkably well with both the bias dependence of the local conductance and the spatial structure of the low-bias conductance as obtained by scanning tunneling microscopy measurements on LiFeAs [T. Hanaguri et al., Phys. Rev. B 85, 214505 (2012)].
Bibliography:NBI CMT 2016
ISSN:2331-8422
DOI:10.48550/arxiv.1603.04453