Year: 2025
Type: article
Abstract: We demonstrate that the interaction of dc temperature gradient with ac magnetic field in temperature-biased two-dimensional electron systems leads to formation of a new electromagnetic mode, a two-dimensional thermomagnetic wave (2D TMW). This wave is transverse electric and nonreciprocal, and its damping rate can be lower than that of conventional 2D plasma waves. The $$Q$$ -factor of 2D TMW is independent of the wave vector. Numerical estimates show that in state-of-the-art two-dimensional electrons systems the 2D TMW $$Q$$ -factor is the order of 10–3. We discuss possible ways to overcome this issue.
Author: A. S. Petrov
Institution: Moscow Institute of Physics and Technology
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Funder: Russian Science Foundation
OpenAlex ID: W4411793625