Electronic correlations and universal long-range scaling in kagome metals

Author(s)
Domenico Di Sante, Bongjae Kim, Werner Hanke, Tim Wehling, Cesare Franchini, Ronny Thomale, Giorgio Sangiovanni
Abstract

We investigate the real-space profile of effective Coulomb interactions in correlated kagome materials. By particularizing to KV3Sb5, Co3Sn2S2, FeSn, and Ni3In, we analyze representative cases that exhibit a large span of correlation-mediated phenomena, and contrast them to prototypical perovskite transition metal oxides. From our constrained random phase approximation studies we find that the on-site interaction strength in kagome metals not only depends on the screening processes at high energy, but also on the low-energy hybridization profile of the electronic density of states. Our results indicate that rescaled by the on-site interaction amplitude, all kagome metals exhibit a universal long-range Coulomb behavior.

Organisation(s)
Computational Materials Physics
External organisation(s)
University of Bologna, Flatiron Institute, Kunsan National University, Julius-Maximilians-Universität Würzburg, Universität Hamburg
Journal
Physical Review Research
Volume
5
No. of pages
7
ISSN
2643-1564
DOI
https://doi.org/10.1103/PhysRevResearch.5.L012008
Publication date
01-2023
Peer reviewed
Yes
Austrian Fields of Science 2012
103043 Computational physics, 103018 Materials physics
ASJC Scopus subject areas
Physics and Astronomy(all)
Portal url
https://ucris.univie.ac.at/portal/en/publications/electronic-correlations-and-universal-longrange-scaling-in-kagome-metals(80547b4c-e068-4825-9837-c2087d0f8bf7).html