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Nanosystems: Physics, Chemistry, Mathematics, 2020, Volume 11, Issue 6, Pages 659–665
DOI: https://doi.org/10.17586/2220-8054-2020-11-6-659-665 (Mi nano571) 		 
PHYSICS

Effective easy-axis anisotropy of the two-sublattice single-chain magnet with twisted easy planes

M. S. Shustina, M. N. Potkinabcd

a L. V. Kirensky Institute of Physics, 660036, Krasnoyarsk, Russia
b St. Petersburg State University, St. Petersburg, 198504, Russia
c ITMO University, Kronverkskiy, 49, St. Petersburg, 197101, Russia
d Science Institute and Faculty of Physical Sciences, Univ. of Iceland 107 Reykjavík, Iceland
Full-text PDF (235 kB)
DOI: https://doi.org/10.17586/2220-8054-2020-11-6-659-665
Abstract: An analytical solution for the spin-wave spectrum of the two-sublattice 1D magnet with $S_A = S_B = 1$ and twisting easy planes has been obtained. Such planes are mutually twisted by an angle $\varphi$ relative to each other. For the case of mutually orthogonal easy planes $\varphi = \pi/2$, the spectrum vs. quasi-momentum dependence has been compared with that of an easy-axis magnet with the easy axis aligned along the line of intersection of the planes. An analogy of the spectra of the models has been shown, indicating the possibility of the effective easy axis anisotropy in easy-plane two-sublattice single-chain magnets.
Keywords: single-chain magnets, magnonic spectrum, strong single-ion anisotropy.
Funding agency Grant number
Foundation for the Development of Theoretical Physics and Mathematics BASIS 20-1-4-25-1
19-1-1-12-2
S. M. S. and M. N. P. acknowledges the support from the Foundation for the Advancement of Theoretical Physics and Mathematics “BASIS” (Grants No. 20-1-4-25-1 and 19-1-1-12-2, respectively).
Received: 18.10.2020
Revised: 10.11.2020
Bibliographic databases:
Document Type: Article
Language: English
Citation: M. S. Shustin, M. N. Potkina, “Effective easy-axis anisotropy of the two-sublattice single-chain magnet with twisted easy planes”, Nanosystems: Physics, Chemistry, Mathematics, 11:6 (2020), 659–665
Citation in format AMSBIB
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\by M.~S.~Shustin, M.~N.~Potkina
\paper Effective easy-axis anisotropy of the two-sublattice single-chain magnet with twisted easy planes
\jour Nanosystems: Physics, Chemistry, Mathematics
\yr 2020
\vol 11
\issue 6
\pages 659--665
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\crossref{https://doi.org/10.17586/2220-8054-2020-11-6-659-665}
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