Effect of nematic ordering on electronic structure of FeSe - Kölner UniversitätsPublikationsServer

Fedorov, A., Yaresko, A., Kim, T. K., Kushnirenko, Y., Haubold, E., Wolf, T., Hoesch, M., Grueneis, A., Buechner, B. and Borisenko, S. V. (2016). Effect of nematic ordering on electronic structure of FeSe. Sci Rep, 6. LONDON: NATURE PUBLISHING GROUP. ISSN 2045-2322

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DOI:10.1038/srep36834

Abstract

Electronically driven nematic order is often considered as an essential ingredient of high-temperature superconductivity. Its elusive nature in iron-based superconductors resulted in a controversy not only as regards its origin but also as to the degree of its influence on the electronic structure even in the simplest representative material FeSe. Here we utilized angle-resolved photoemission spectroscopy and density functional theory calculations to study the influence of the nematic order on the electronic structure of FeSe and determine its exact energy and momentum scales. Our results strongly suggest that the nematicity in FeSe is electronically driven, we resolve the recent controversy and provide the necessary quantitative experimental basis for a successful theory of superconductivity in iron-based materials which takes into account both, spin-orbit interaction and electronic nematicity.

Item Type:

Journal Article

Creators:

Creators	Email	ORCID	ORCID Put Code
Fedorov, A.	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Yaresko, A.	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Kim, T. K.	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Kushnirenko, Y.	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Haubold, E.	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Wolf, T.	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Hoesch, M.	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Grueneis, A.	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Buechner, B.	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Borisenko, S. V.	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED