On thermal Hall effect in boson systems
Abstract
We theoretically discuss the thermal Hall effect (THE) in boson systems keeping in mind possible applications to magnetically ordered insulators with skyrmion lattice ground state. The magnon spectrum of such systems may undergo a topological transition upon the variation of magnetic field, and THE could be a tool to confirm this phenomenon. We rederive formulas, suitable for our purposes, and find expressions which have a different temperature dependence of THE as compared to previously reported results. Particularly, in presence of anomalous terms in magnon Hamiltonian the thermal Hall conductivity has a small but finite residual 1/T contribution. Such contribution may become sizable at very low temperatures and resembles Meissner effect in superconducting metals.
Versions
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BibTeX
@misc{baramygina2026thermal,
title = {{On thermal Hall effect in boson systems}},
author = {Yu. V. Baramygina and D. N. Aristov},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.29482},
eprint = {2610.29482},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.29482},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - On thermal Hall effect in boson systems
AU - Yu. V. Baramygina
AU - D. N. Aristov
PY - 2026
DA - 2026/10/21
PB - arXiv
DO - 10.48550/arxiv.2610.29482
UR - https://arxiv.org/abs/2610.29482
AB - We theoretically discuss the thermal Hall effect (THE) in boson systems keeping in mind possible applications to magnetically ordered insulators with skyrmion lattice ground state. The magnon spectrum of such systems may undergo a topological transition upon the variation of magnetic field, and THE could be a tool to confirm this phenomenon. We rederive formulas, suitable for our purposes, and find expressions which have a different temperature dependence of THE as compared to previously reported results. Particularly, in presence of anomalous terms in magnon Hamiltonian the thermal Hall conductivity has a small but finite residual 1/T contribution. Such contribution may become sizable at very low temperatures and resembles Meissner effect in superconducting metals.
ER -