Ground state of an antiferromagnet with uniform antisymmetric exchange in a magnetic field
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 de...
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| Veröffentlicht in: | JETP letters 2010-07, Vol.92 (2), p.115-119 |
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| creator | Martynov, S. N. Tugarinov, V. I. |
| description | 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 Δ
m
∼ 10
−1
m
. |
| doi_str_mv | 10.1134/S0021364010140092 |
| format | Article |
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m
∼ 10
−1
m
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m
∼ 10
−1
m
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m
∼ 10
−1
m
.</abstract><cop>Dordrecht</cop><pub>SP MAIK Nauka/Interperiodica</pub><doi>10.1134/S0021364010140092</doi><tpages>5</tpages></addata></record> |
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| ispartof | JETP letters, 2010-07, Vol.92 (2), p.115-119 |
| issn | 0021-3640 1090-6487 |
| language | eng |
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| subjects | Atomic Biological and Medical Physics Biophysics Molecular Optical and Plasma Physics Particle and Nuclear Physics Physics Physics and Astronomy Quantum Information Technology Solid State Physics Spintronics |
| title | Ground state of an antiferromagnet with uniform antisymmetric exchange in a magnetic field |
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