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Moiré-induced altermagnetism from nonmagnetic constituents
Abstract
We propose a mechanism for nonmagnetic materials to develop altermagnetic order by moiré interference with nonmagnetic substrate, which is driven by structural relaxation and spontaneous twirls in moiré domain walls of lattice-mismatched moiré square lattices. When doped with one electron per moiré domain, a correlated insulating gap is opened by electron interaction. Depending on the location of the moiré potential minima, the moiré bands can show d-wave or g-wave altermagnetic splitting. The former can be enhanced by a finite twist angle; the latter is sensitive to strains that drive a transition to d-wave.
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BibTeX
@misc{shi2026moiréinduced,
title = {{Moiré-induced altermagnetism from nonmagnetic constituents}},
author = {Jingtian Shi and Maxim Khodas and Ivar Martin},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.03271},
eprint = {2609.03271},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.03271},
}
RIS
TY - UNPB
TI - Moiré-induced altermagnetism from nonmagnetic constituents
AU - Jingtian Shi
AU - Maxim Khodas
AU - Ivar Martin
PY - 2026
DA - 2026/09/12
PB - arXiv
DO - 10.48550/arxiv.2609.03271
UR - https://arxiv.org/abs/2609.03271
AB - We propose a mechanism for nonmagnetic materials to develop altermagnetic order by moiré interference with nonmagnetic substrate, which is driven by structural relaxation and spontaneous twirls in moiré domain walls of lattice-mismatched moiré square lattices. When doped with one electron per moiré domain, a correlated insulating gap is opened by electron interaction. Depending on the location of the moiré potential minima, the moiré bands can show d-wave or g-wave altermagnetic splitting. The former can be enhanced by a finite twist angle; the latter is sensitive to strains that drive a transition to d-wave.
ER -