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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2010, Volume 92, Issue 2, Pages 119–123
(Mi jetpl778)
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This article is cited in 1 scientific paper (total in 1 paper)
CONDENSED MATTER
Ground state of an antiferromagnet with uniform antisymmetric exchange in a magnetic field
S. N. Martynov, V. I. Tugarinov L. V. Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences
Abstract:
A system of two nonlinear differential equations for sublattice angles is proposed to describe the spin orientation distribution in a planar antiferromagnet with uniform antisymmetric exchange in a magnetic field. This system involves the initial symmetry of the problem and is reduced to a single delay differential equation. The solutions of this system are parameterized by the initial condition imposed on the angle of one sublattice at the hyperbolic singular point of the phase space. The numerical analysis of the stability boundary of soliton solutions demonstrates that the transition to the commensurate phase takes place outside the region where the stochastic solutions appear and is accompanied by the magnetization jump Δm ∼ 10−1 m.
Received: 18.06.2010
Citation:
S. N. Martynov, V. I. Tugarinov, “Ground state of an antiferromagnet with uniform antisymmetric exchange in a magnetic field”, Pis'ma v Zh. Èksper. Teoret. Fiz., 92:2 (2010), 119–123; JETP Letters, 92:2 (2010), 115–119
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https://www.mathnet.ru/eng/jetpl778 https://www.mathnet.ru/eng/jetpl/v92/i2/p119
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Abstract page: | 261 | Full-text PDF : | 112 | References: | 47 |
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