Dresden 2026 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 79: Correlated Magnetism – Transport
TT 79.1: Vortrag
Donnerstag, 12. März 2026, 11:30–11:45, HSZ/0103
Spin Dynamics Approach to Thermal Hall Conductivity — •Ignacio Salgado-Linares1,2, Alexander Mook3, Léo Mangeolle1,2, and Johannes Knolle1,2,4 — 1Technical University of Munich, TUM School of Natural Sciences, Physics Department, TQM, 85748 Garching, Germany — 2Munich Center for Quantum Science and Technology (MCQST), Schellingstr. 4, 80799 München, Germany — 3Department of Physics, Johannes Gutenberg University Mainz, 55128 Mainz, Germany — 4Blackett Laboratory, Imperial College London, London SW7 2AZ, United Kingdom
In recent years, the thermal Hall effect has emerged as a powerful tool for probing topological phenomena of magnetic systems. At low temperatures, the thermal Hall transport of long-range ordered magnets can be described in the framework of linear spin-wave theory (LSWT). However, how to treat regimes with increased thermal fluctuations or non-linearities beyond LSWT is an outstanding question. Therefore, within this project, we developed a novel numerical technique to extract the thermal Hall transport properties, which intrinsically includes non-linear effects. In particular, we use semi-classical spin dynamics simulations to compute thermal currents in the Kitaev model in a field. The results are expected to shed new light on the topological thermal transport in Kitaev spin liquid candidate materials.
Keywords: Thermal Hall; transport; topology