Floquet Control of Indirect Exchange Interaction in Periodically Driven Two-Dimensional Electron Systems
Mesoscale and Nanoscale Physics
2024-09-02 v1
Abstract
We present a theory for the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction mediated by a two-dimensional (2D) electron system subjected to periodic driving. This is demonstrated for a heterostructure consisting of two ferromagnets laterally sandwiching the 2D metallic spacer. Our calculations reveal new non-analytic features in the spin susceptibility. For weak light-matter coupling, the RKKY interaction shows oscillations with a period tunable by the light amplitude and frequency. For stronger light-matter coupling, the interaction becomes non-oscillatory and remains purely ferromagnetic.
Keywords
Cite
@article{arxiv.2003.14383,
title = {Floquet Control of Indirect Exchange Interaction in Periodically Driven Two-Dimensional Electron Systems},
author = {Mahmoud M. Asmar and Wang-Kong Tse},
journal= {arXiv preprint arXiv:2003.14383},
year = {2024}
}