Berlin 2024 – scientific programme
Parts | Days | Selection | Search | Updates | Downloads | Help
TT: Fachverband Tiefe Temperaturen
TT 75: Low Dimensional Systems
TT 75.8: Talk
Thursday, March 21, 2024, 17:00–17:15, H 3007
Thermal Hall transport in Semi-classical Magnets — •Ignacio Salgado-Linares1,2, Alexander Mook3, and Johannes Knolle1,2 — 1Physics Department, TUM School of Natural Sciences, Technical University of Munich, 85748 Garching, Germany — 2Munich Center for Quantum Science and Technology (MCQST), Schellingstr. 4, 80799 München, Germany — 3Institute of Physics, Johannes Gutenberg University Mainz, 55128 Mainz, Germany
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 topological thermal edge currents in the Kitaev honeycomb model on a cylinder geometry. The results are expected to shed new light on the topological thermal transport in Kitaev spin liquid candidate materials.
Keywords: Thermal Hall; magnons; transport; topology