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Curvature effects on phase transitions in chiral magnets

by Kostiantyn V. Yershov, Volodymyr P. Kravchuk, Denis D. Sheka, Ulrich K. Rößler

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Submission summary

Authors (as registered SciPost users): Denis Sheka · Kostiantyn Yershov
Submission information
Preprint Link:  (pdf)
Date accepted: 2020-09-17
Date submitted: 2020-09-08 10:51
Submitted by: Yershov, Kostiantyn
Submitted to: SciPost Physics
Ontological classification
Academic field: Physics
  • Condensed Matter Physics - Theory
Approaches: Theoretical, Computational


Periodical equilibrium states of magnetization exist in chiral ferromagnetic films, if the constant of antisymmetric exchange (Dzyaloshinskii-Moriya interaction) exceeds some critical value. Here, we demonstrate that this critical value can be significantly modified in curved film. The competition between symmetric and antisymmetric exchange interactions in a curved film can lead to a new type of domain wall which is inclined with respect to the cylinder axis. The wall structure is intermediate between Bloch and N\'eel ones. The exact analytical solutions for phase boundary curves and the new domain wall are obtained.

Published as SciPost Phys. 9, 043 (2020)

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