https://doi.org/10.1140/epjb/s10051-025-01024-y
Research - Condensed Matter
Magnetic states of finite-length Mn chains on Pt(332) surface induced by the Dzyaloshinskii–Moriya interaction
Faculty of Physics, Lomonosov Moscow State University, Leninskie Gory, 119991, Moscow, Russian Federation
a
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Received:
4
July
2025
Accepted:
11
August
2025
Published online:
20
August
2025
Abstract
Using the geodesic nudged elastic band method and the harmonic approximation of transition state theory the magnetic properties of finite-length Mn atomic chains on the Pt(332) surface have been investigated. Our study accounted for exchange interaction, magnetic anisotropy energy, Dzyaloshinskii–Moriya interaction (DMI), and long-range dipole–dipole interactions. We found that finite-length Mn chains can exhibit both quasicollinear and helical structures, with the DMI at the chain ends playing a crucial role in stabilizing these configurations. The competition between magnetic anisotropy energy and DMI determines the plane in which the helical structures are oriented. Additionally, dipole–dipole interactions contribute to narrowing the domain wall width and reducing the deviation of magnetic moments at the chain ends from the easy magnetization axis. Our results show that the lifetimes of magnetic states are highly sensitive to temperature and chain length. For certain chain lengths, the lifetimes of four or even six different magnetic states are nearly identical or very close. This result may be interesting for future technical applications.
Supplementary Information The online version contains supplementary material available at https://doi.org/10.1140/epjb/s10051-025-01024-y.
Copyright comment Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
Sergey V. Kolesnikov, Ekaterina S. Glazova and Alexander M. Saletsky contributed equally to this work.
© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
