Topological kagome magnets and superconductors

JX Yin, B Lian, MZ Hasan - Nature, 2022 - nature.com
A kagome lattice naturally features Dirac fermions, flat bands and van Hove singularities in
its electronic structure. The Dirac fermions encode topology, flat bands favour correlated …

The magnetic genome of two-dimensional van der Waals materials

QH Wang, A Bedoya-Pinto, M Blei, AH Dismukes… - ACS …, 2022 - ACS Publications
Magnetism in two-dimensional (2D) van der Waals (vdW) materials has recently emerged as
one of the most promising areas in condensed matter research, with many exciting emerging …

Cascade of correlated electron states in the kagome superconductor CsV3Sb5

H Zhao, H Li, BR Ortiz, SML Teicher, T Park, M Ye… - Nature, 2021 - nature.com
The kagome lattice of transition metal atoms provides an exciting platform to study electronic
correlations in the presence of geometric frustration and nontrivial band topology …

: A Topological Kagome Metal with a Superconducting Ground State

BR Ortiz, SML Teicher, Y Hu, JL Zuo, PM Sarte… - Physical Review Letters, 2020 - APS
Recently discovered alongside its sister compounds KV 3 Sb 5 and RbV 3 Sb 5, CsV 3 Sb 5
crystallizes with an ideal kagome network of vanadium and antimonene layers separated by …

[HTML][HTML] The hubbard model

DP Arovas, E Berg, SA Kivelson… - Annual review of …, 2022 - annualreviews.org
The repulsive Hubbard model has been immensely useful in understanding strongly
correlated electron systems and serves as the paradigmatic model of the field. Despite its …

Superconductivity in the kagome metal

BR Ortiz, PM Sarte, EM Kenney, MJ Graf… - Physical Review …, 2021 - APS
Here we report the observation of bulk superconductivity in single crystals of the two-
dimensional kagome metal KV 3 Sb 5. Magnetic susceptibility, resistivity, and heat capacity …

Double Superconducting Dome and Triple Enhancement of in the Kagome Superconductor under High Pressure

KY Chen, NN Wang, QW Yin, YH Gu, K Jiang, ZJ Tu… - Physical Review Letters, 2021 - APS
CsV 3 Sb 5 is a newly discovered Z 2 topological kagome metal showing the coexistence of
a charge-density-wave (CDW)-like order at T*= 94 K and superconductivity (SC) at T c= 2.5 …

Concept and realization of Kitaev quantum spin liquids

H Takagi, T Takayama, G Jackeli, G Khaliullin… - Nature Reviews …, 2019 - nature.com
The Kitaev model is an exactly solvable S= 1/2 spin model on a 2D honeycomb lattice, in
which the spins fractionalize into Majorana fermions and form a topological quantum spin …

Quantum spin liquids

C Broholm, RJ Cava, SA Kivelson, DG Nocera… - Science, 2020 - science.org
BACKGROUND Years ago, Lev Landau taught us how to think about distinct phases of
matter through an order parameter that characterizes the symmetry-broken state relative to …

Tensor networks for complex quantum systems

R Orús - Nature Reviews Physics, 2019 - nature.com
Originally developed in the context of condensed-matter physics and based on
renormalization group ideas, tensor networks have been revived thanks to quantum …