Temperature evolution of the Fermi surface of the FeSe monolayer on SrTiO$_3$

Fuente: arXiv
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Main Authors: Zakeri, Khalil, Roemer, Ryan, Zou, Ke
Format: Preprint
Published: 2024
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author Zakeri, Khalil
Roemer, Ryan
Zou, Ke
author_facet Zakeri, Khalil
Roemer, Ryan
Zou, Ke
contents The origin of superconductivity in the FeSe monolayer on SrTiO$_3$ remains one of the unresolved mysteries in condensed-matter physics. Here by investigation of the temperature evolution of the dynamic charge response of FeSe/SrTiO$_3$ we infer that the response of the monolayer itself is nearly temperature independent. This indicates a constant Fermi surface over a wide range of temperature, in stark contrast to that of the bulk FeSe and other Fe-based superconductors. Our results, which manifest the peculiarity of the electronic structure of the FeSe monolayer, may help for a microscopic understanding of the superconductivity in Fe-chalcogenide monolayers on oxide surfaces in general.
format Preprint
id arxiv_https___arxiv_org_abs_2405_16910
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Temperature evolution of the Fermi surface of the FeSe monolayer on SrTiO$_3$
Zakeri, Khalil
Roemer, Ryan
Zou, Ke
Superconductivity
Strongly Correlated Electrons
The origin of superconductivity in the FeSe monolayer on SrTiO$_3$ remains one of the unresolved mysteries in condensed-matter physics. Here by investigation of the temperature evolution of the dynamic charge response of FeSe/SrTiO$_3$ we infer that the response of the monolayer itself is nearly temperature independent. This indicates a constant Fermi surface over a wide range of temperature, in stark contrast to that of the bulk FeSe and other Fe-based superconductors. Our results, which manifest the peculiarity of the electronic structure of the FeSe monolayer, may help for a microscopic understanding of the superconductivity in Fe-chalcogenide monolayers on oxide surfaces in general.
title Temperature evolution of the Fermi surface of the FeSe monolayer on SrTiO$_3$
topic Superconductivity
Strongly Correlated Electrons
url https://arxiv.org/abs/2405.16910