Itinerant spin polaron and metallic ferromagnetism are theoretically predicted in the Mott insulator in semiconductor moir\'e superlattices doped below and above half filling of the narrow moir\'e band, respectively. The existence of spin polaron can be directly identified from the kink in the dependence of the charge gap on the magnetic field.
@article{arxiv.2206.01221,
title = {Itinerant spin polaron and metallic ferromagnetism in semiconductor moir\'e superlattices},
author = {Margarita Davydova and Yang Zhang and Liang Fu},
journal= {arXiv preprint arXiv:2206.01221},
year = {2023}
}
Comments
final version; 6 pages of main text including 3 figures; 10 pages of Supplementary Material