Dynamical Structure Factors of Quasi-One-Dimensional Magnets of the Type of CsNiF_3

• Authors: V. Lisý , J. Tóthová
• Languages of publication: EN

Abstracts

EN

By a direct derivation of the equations of motion for the spins in CsNiF_3 we show that the extensively used sine-Gordon equation fails to describe the dynamics of this 1D magnet. Instead of this soliton-bearing model we use the spin-wave theory and, without going to the continuum approximation, calculate the dynamic structure factors of the scattering of neutrons on CsNiF_3. Complete analytical solutions for the dynamic structure factors in the frequency domain are obtained both within the classical consideration and with quantum corrections.

Keywords

EN

75.10.Jm; 75.10.Hk; 75.30.Ds; 75.40.Gb; 78.70.Nx

Discipline

• 78.70.Nx: Neutron inelastic scattering
• 75.30.Ds: Spin waves(for spin-wave resonance, see 76.50.+g)
• 75.10.Hk: Classical spin models
• 75.40.Gb: Dynamic properties (dynamic susceptibility, spin waves, spin diffusion, dynamic scaling, etc.)
• 75.10.Jm: Quantized spin models, including quantum spin frustration

• Journal: Acta Physica Polonica A
• Year: 2010
• Volume: 118
• Issue: 5
• Pages: 953-955

Dates

published

2010-11

Contributors

author

V. Lisý

• Department of Physics, Faculty of Electrical Engineering and Informatics, Technical University of Košice, Park Komenského 2, 042 00 Košice, Slovakia

author

J. Tóthová

• Department of Physics, Faculty of Electrical Engineering and Informatics, Technical University of Košice, Park Komenského 2, 042 00 Košice, Slovakia

References

• 1. M. Orendáč, A. Orendáčová, E. Čižmár, J.-H. Park, A. Feher, S.J. Gamble, S. Gabáni, K. Flachbart, J. Karadamoglou, M. Poirier, M.W. Meisel, Phys. Rev. B 69, 184403 (2004)
• 2. J.P. Nguenang, T.C. Kofane, Chaos Solitons Fractals 30, 552 (2006)
• 3. J. Beula, M. Daniel, Physica D 239, 397 (2010)
• 4. H.J. Mikeska, J. Phys. C, Solid State Phys. 11, L29 (1978)
• 5. V.G. Makhankov, Soliton Phenomenology, Kluwer, Dordrecht 1992
• 6. G. Reiter, Phys. Rev. Lett. 46, 202 (1981)
• 7. J. Karadamoglou, N. Papanicolaou, Phys. Rev. B 63, 224406 (2001)
• 8. M. Steiner, K. Kakurai, W. Knop, R. Pynn, J.K. Kjems, Solid State Commun. 41, 329 (1982)

Identifiers

DOI

10.12693/APhysPolA.118.953