Bose, I. ; Bhaumik, U. (1994) Heisenberg hamiltonian with a dzyaloshinski-moriya interaction Journal of Physics: Condensed Matter, 6 (48). pp. 10617-10623. ISSN 0953-8984
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Official URL: http://iopscience.iop.org/0953-8984/6/48/020
Related URL: http://dx.doi.org/10.1088/0953-8984/6/48/020
Abstract
The spin- 1/2 ferromagnetic Heisenberg Hamiltonian with a Dzyaloshinski-Moriya interaction and in the presence of a strong magnetic field is studied in one dimension. Using the exact Bethe ansatz analysis, the excitation spectrum of one- and two-magnon states is derived. It is further shown that in certain parameter regimes the two-magnon bound state exists in the full range of allowed values of the centre-of-mass momentum wavevector k.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Institute of Physics Publishing. |
| ID Code: | 6016 |
| Deposited On: | 19 Oct 2010 09:49 |
| Last Modified: | 23 May 2011 05:12 |
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