Curvature effects on phase transitions in chiral magnets
Kostiantyn V. Yershov, Volodymyr P. Kravchuk, Denis D. Sheka, Ulrich K. Rößler
SciPost Phys. 9, 043 (2020) · published 1 October 2020
- doi: 10.21468/SciPostPhys.9.4.043
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Abstract
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.
Cited by 17
Authors / Affiliations: mappings to Contributors and Organizations
See all Organizations.- 1 2 Kostiantyn Yershov,
- 1 3 Volodymyr Kravchuk,
- 4 Denis Sheka,
- 2 Ulrich Roessler
- 1 Bogolyubov Institute for Theoretical Physics [BITP]
- 2 Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden / Leibniz Institute for Solid State and Materials Research [IFW]
- 3 Karlsruher Institut für Technologie / Karlsruhe Institute of Technology [KIT]
- 4 Київський національний університет імені Тараса Шевченка / Taras Shevchenko National University of Kyiv [KNU]