Normal state incoherent pseudogap in FeSe superconductor

Luis Craco () and Mukul S. Laad
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Luis Craco: Instituto de Física, Universidade Federal de Mato Grosso
Mukul S. Laad: The Institute of Mathematical Sciences

The European Physical Journal B: Condensed Matter and Complex Systems, 2016, vol. 89, issue 5, 1-7

Abstract: Abstract The normal state of Iron chalcogenide superconductors show a range of unconventional features. Bad-metallic resistivity and proximity to insulating state manifest themselves in spectral and transport responses. In particular, obervation of low-energy pseudogap feature in the normal state raises the issue of the nature of processes underpinning its emergence as well as its relation to unconventional superconductivity. Here, using the LDA+DMFT method, we show how correlation-induced orbital-selective pseudogap-like physics underpin these incoherent features in stoichimetric and electron-doped FeSe superconductor. We discuss the pseudogap regime microscopically, along with implications for the superconductive instability.

Keywords: Solid; State; and; Materials (search for similar items in EconPapers)
Date: 2016
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DOI: 10.1140/epjb/e2016-60842-y

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