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Curvature effects on phase transitions in chiral magnets

Yershov, Kostiantyn; Kravchuk, Volodymyr; Sheka, Denis; Roessler, Ulrich

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.

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Verlagsausgabe §
DOI: 10.5445/IR/1000127970
Veröffentlicht am 22.12.2020
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Theoretische Festkörperphysik (TFP)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2020
Sprache Englisch
Identifikator ISSN: 2542-4653
KITopen-ID: 1000127970
Erschienen in SciPost physics
Verlag SciPost
Band 9
Heft 4
Seiten Art. Nr.: 043
Vorab online veröffentlicht am 01.10.2020
Nachgewiesen in Scopus
Web of Science
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