Topological magnons: A review

PA McClarty - Annual Review of Condensed Matter Physics, 2022 - annualreviews.org
At sufficiently low temperatures, magnetic materials often enter correlated phases hosting
collective, coherent magnetic excitations such as magnons or triplons. Drawing on the …

[HTML][HTML] Kitaev materials

S Trebst, C Hickey - Physics Reports, 2022 - Elsevier
In transition-metal compounds with partially filled 4 d and 5 d shells spin–orbit
entanglement, electronic correlations, and crystal-field effects conspire to give rise to a …

Half-integer quantized anomalous thermal Hall effect in the Kitaev material candidate α-RuCl3

T Yokoi, S Ma, Y Kasahara, S Kasahara, T Shibauchi… - Science, 2021 - science.org
Half-integer thermal quantum Hall conductance has recently been reported for the two-
dimensional honeycomb material α-RuCl3. We found that the half-integer thermal Hall …

Rethinking

PA Maksimov, AL Chernyshev - Physical Review Research, 2020 - APS
We argue that several empirical constraints strongly restrict parameters of the effective
microscopic spin model describing α-RuCl 3. In particular, such constraints dictate a …

Theory of the field-revealed Kitaev spin liquid

JS Gordon, A Catuneanu, ES Sørensen… - Nature …, 2019 - nature.com
Elementary excitations in entangled states such as quantum spin liquids may exhibit exotic
statistics different from those obeyed by fundamental bosons and fermions. Non-Abelian …

Finite field regime for a quantum spin liquid in

C Balz, P Lampen-Kelley, A Banerjee, J Yan, Z Lu… - Physical Review B, 2019 - APS
An external magnetic field can induce a transition in α-RuCl 3 from an ordered zigzag state
to a disordered state that is possibly related to the Kitaev quantum spin liquid. Here, we …

Sign structure of thermal Hall conductivity and topological magnons for in-plane field polarized Kitaev magnets

LE Chern, EZ Zhang, YB Kim - Physical Review Letters, 2021 - APS
The appearance of half-quantized thermal Hall conductivity in α-RuCl 3 in the presence of in-
plane magnetic fields has been taken as a strong evidence for the Kitaev spin liquid. Apart …

Identification of magnetic interactions and high-field quantum spin liquid in α-RuCl3

H Li, HK Zhang, J Wang, HQ Wu, Y Gao, DW Qu… - Nature …, 2021 - nature.com
The frustrated magnet α-RuCl3 constitutes a fascinating quantum material platform that
harbors the intriguing Kitaev physics. However, a consensus on its intricate spin interactions …

Thermal Hall effect of magnons in collinear antiferromagnetic insulators: Signatures of magnetic and topological phase transitions

RR Neumann, A Mook, J Henk, I Mertig - Physical Review Letters, 2022 - APS
We demonstrate theoretically that the thermal Hall effect of magnons in collinear
antiferromagnetic insulators is an indicator of magnetic and topological phase transitions in …

Thermal Hall effects in quantum magnets

XT Zhang, YH Gao, G Chen - Physics Reports, 2024 - Elsevier
In the recent years, the thermal Hall transport has risen as an important diagnosis of the
physical properties of the elementary excitations in various quantum materials, especially …