Two-magnon states of the alternating ferromagnetic Heisenberg chain
- 11 December 1989
- journal article
- Published by IOP Publishing in Journal of Physics: Condensed Matter
- Vol. 1 (49) , 9899-9810
- https://doi.org/10.1088/0953-8984/1/49/010
Abstract
The authors examine the nature of two-magnon excitations in the alternating bond ferromagnetic S=1/2 spin chain. Both a direct analytic approach as well as a method based on a scaling transformation are used to study the bound state branches and their relationship to the two-magnon continuum. Several features are expected to be observable in two-magnon Raman scattering experiments.Keywords
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