Abstract:
The ground state of a Heisenberg ferromagnet with noncollinear single-ion anisotropy axes of two sublattices is investigated in the external magnetic field applied in the anisotropy axes plane. The noncollinearity of local anisotropy axes leads to new effect - the first order spin reorientation phase transition of the spin-flop type. The transition field depends on the value of anisotropy and orientation of the sublattice axes. Stability analysis of magnetic states shown that the field induced transition is accompanied by the magnetization hysteresis. The dependencies of the spin-flop transition field, the magnetization jump value and the susceptibility on the anisotropy parameters are determined. The obtained results are used for explanation of the magnetization field dependence in the ferromagnetic crystal PbMnBO4.
This study was supported by the Russian Foundation for Basic Research, the Government of the Krasnoyarsk krai, and the Krasnoyarsk Territorial Foundation for Support of Scientific and R&D Activity, project no. 18-42-240008 "Effect of the Magnetic Structure on the Magnetodielectric Properties of Oxide Crystallites Containing Stereoactive Pb2+ and Bi3+ Ions".
Citation:
S. N. Martynov, “Single-ion weak antiferromagnetism and spin-flop transition in a two-sublattice ferromagnet”, Fizika Tverdogo Tela, 62:7 (2020), 1036–1042; Phys. Solid State, 62:7 (2020), 1165–1171
\Bibitem{Mar20}
\by S.~N.~Martynov
\paper Single-ion weak antiferromagnetism and spin-flop transition in a two-sublattice ferromagnet
\jour Fizika Tverdogo Tela
\yr 2020
\vol 62
\issue 7
\pages 1036--1042
\mathnet{http://mi.mathnet.ru/ftt8370}
\crossref{https://doi.org/10.21883/FTT.2020.07.49468.017}
\elib{https://elibrary.ru/item.asp?id=43800523}
\transl
\jour Phys. Solid State
\yr 2020
\vol 62
\issue 7
\pages 1165--1171
\crossref{https://doi.org/10.1134/S1063783420070148}
Linking options:
https://www.mathnet.ru/eng/ftt8370
https://www.mathnet.ru/eng/ftt/v62/i7/p1036
This publication is cited in the following 7 articles:
S. N. Martynov, “Anisotropic exchange interactions in a ferromagnet PbMnBO$_4$”, JETP Letters, 119:11 (2024), 879–884
Angelica P. Orlova, Maxwell S. Varley, Maximilian G. Bernbeck, Kyle M. Kirkpatrick, Philip C. Bunting, Milan Gembicky, Jeffrey D. Rinehart, “Molecular Network Approach to Anisotropic Ising Lattices: Parsing Magnetization Dynamics in Er3+ Systems with 0–3-Dimensional Spin Interactivity”, J. Am. Chem. Soc., 145:40 (2023), 22265
S.N. Martynov, “Orbital structure and magnetic phase diagram of the four-sublattice ferromagnet PbMnBO4”, Journal of Magnetism and Magnetic Materials, 570 (2023), 170520
S. N. Martynov, “Ground state of the orbitally ordered PbMnBO$_4$ ferromagnet”, JETP Letters, 115:11 (2022), 679–684
M. A. Prosnikov, M. E. Bal, M. I. Kolkov, A. I. Pankrats, R. V. Pisarev, P. C. M. Christianen, “Subterahertz and terahertz spin and lattice dynamics of the insulating ferromagnet
PbMnBO4”, Phys. Rev. Research, 4:1 (2022)
S. N. Martynov, “Ground state of a two-sublattice anisotropic ferromagnet in a magnetic field”, Phys. Solid State, 63:8 (2021), 1253–1261
A. M. Vorotynov, A. I. Pankrats, M. I. Kolkov, “EPR Study of the Single-Ion Magnetic Anisotropy of the Fe3+ Ion in a Diamagnetic PbGaBO4 Crystal”, J. Exp. Theor. Phys., 133:5 (2021), 574
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