Normal-state correlated electronic structure of the tetragonal TlNi2Se2 superconductor

Craco, L. and Leoni, Stefano ORCID: https://orcid.org/0000-0003-4078-1000 2023. Normal-state correlated electronic structure of the tetragonal TlNi2Se2 superconductor. Physical Review B 108 (4) , 045140. 10.1103/PhysRevB.108.045140

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Abstract

On the basis of density functional plus dynamical mean-field theory calculations we explore the electronic structure of the TlNi2Se2 superconductor, showing how the normal-state spectra are reshaped by dynamical many-particle interactions. Upon electron-doping the 3d8 Fermi liquid metal, hidden orbital selectivity with coexisting Mott localized, pseudogapped, and narrow Kondo-quasiparticle electronic excitations is predicted for TlNi2Se2. By specifically focusing on the energy spectrum that is relevant to the mixed-valence heavy-electron normal state of unconventional superconductors, our findings have the potential to enhance our microscopic understanding of the intricate interplay between many-particle physics and electron band filling, paving the way for further advancements

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Chemistry
Publisher:	American Physical Society
ISSN:	2469-9950
Funders:	Leverhulme Trust
Date of First Compliant Deposit:	20 September 2023
Date of Acceptance:	14 July 2023
Last Modified:	22 Sep 2023 06:26
URI:	https://orca.cardiff.ac.uk/id/eprint/162635

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