Regularized micromagnetic theory for Bloch points

Communications Physics 2026 Open access

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Authors: Vladyslav M. Kuchkin, Andreas Haller, Andreas Michels, Thomas L. Schmidt, Nikolai S. Kiselev
DOI: 10.1038/s42005-026-02565-z
Cited by: 2
References: 124

Abstract

-sphere. This constraint respects fundamental properties of local spin expectation values in quantum systems. We derive the corresponding regularized Landau-Lifshitz-Gilbert equation and the analog of the Thiele equation describing the steady motion of spin textures under various external stimuli. We demonstrate the applicability of our theory by modeling the dynamics of several magnetic textures containing BPs, including domain walls in nanowires, chiral bobbers, and magnetic dipolar strings. The presented results extend micromagnetic theory by incorporating a regularized description of BP dynamics.

Fields of Study & Subjects

Magnetic properties of thin films Topological Materials and Phenomena Advanced Condensed Matter Physics

Publication details

Journal / source
Communications Physics
Publisher
Springer Science and Business Media LLC
Volume
9
Issue
1
Pages
147–147
Publication date
11 March 2026
Language
EN