Torsion-induced Dzyaloshinskii-Moriya interaction in helical magnets

Fuente: arXiv
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Hauptverfasser: Kuznetsov, M. A., Fraerman, A. A.
Format: Preprint
Veröffentlicht: 2025
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author Kuznetsov, M. A.
Fraerman, A. A.
author_facet Kuznetsov, M. A.
Fraerman, A. A.
contents It has been shown that in magnets possessing an inversion center in the absence of deformations, a torsion-induced Dzyaloshinsky-Moriya interaction (tiDMI) can arise. A microscopic mechanism for this interaction is described, involving the transfer of angular momentum to the lattice upon electron reflection from the magnet's boundary. An estimate of the tiDMI constant is provided. It is demonstrated that tiDMI can lift the chiral degeneracy in helimagnets, and a way for experimentally observing this effect is proposed.
format Preprint
id arxiv_https___arxiv_org_abs_2511_21400
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Torsion-induced Dzyaloshinskii-Moriya interaction in helical magnets
Kuznetsov, M. A.
Fraerman, A. A.
Mesoscale and Nanoscale Physics
It has been shown that in magnets possessing an inversion center in the absence of deformations, a torsion-induced Dzyaloshinsky-Moriya interaction (tiDMI) can arise. A microscopic mechanism for this interaction is described, involving the transfer of angular momentum to the lattice upon electron reflection from the magnet's boundary. An estimate of the tiDMI constant is provided. It is demonstrated that tiDMI can lift the chiral degeneracy in helimagnets, and a way for experimentally observing this effect is proposed.
title Torsion-induced Dzyaloshinskii-Moriya interaction in helical magnets
topic Mesoscale and Nanoscale Physics
url https://arxiv.org/abs/2511.21400