Electronic correlations and universal long-range scaling in kagome metals

被引：13

作者：

Di Sante, Domenico ^{[1
,2
]}

Kim, Bongjae ^{[3
]}

Hanke, Werner ^{[4
,5
]}

Wehling, Tim ^{[5
,6
,7
]}

Franchini, Cesare ^{[8
,9
]}

Thomale, Ronny ^{[4
,5
]}

Sangiovanni, Giorgio ^{[4
]}

机构：

[1] Univ Bologna, Dept Phys & Astron, I-40127 Bologna, Italy

[2] Flatiron Inst, Ctr Computat Quantum Phys, 162 5th Ave, New York, NY 10010 USA

[3] Kunsan Univ, Dept Phys, Gunsan 54150, South Korea

[4] Univ Wurzburg, Inst Theoret Phys & Astrophys, D-97074 Wurzburg, Germany

[5] Univ Wurzburg, Wurzburg Dresden Cluster Excellence ct qmat, D-97074 Wurzburg, Germany

[6] Univ Hamburg, Inst Theoret Phys, Notkestr 9, D-22607 Hamburg, Germany

[7] Hamburg Ctr Ultrafast Imaging, Luruper Chaussee 149, D-22761 Hamburg, Germany

[8] Univ Vienna, Fac Phys, Ctr Computat Mat Sci, Sensengasse 8, A-1090 Vienna, Austria

[9] Univ Vienna, Ctr Computat Mat Sci, Sensengasse 8, A-1090 Vienna, Austria

来源：

PHYSICAL REVIEW RESEARCH | 2023年 / 5卷 / 01期

基金：

欧盟地平线“2020”;

关键词：

MODEL;

D O I：

10.1103/PhysRevResearch.5.L012008

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页数：7

共 63 条

[1]

aps, SUPPLEMENTAL MAT, DOI [10.1103/PhysRevResearch.5.L012008, DOI 10.1103/PHYSREVRESEARCH.5.L012008]

[2] Frequency-dependent local interactions and low-energy effective models from electronic structure calculations [J].