ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
The T=0 dynamical properties of the one-dimensional s=1 XXZ model with an additional single-site term are investigated by means of the recursion method. The dynamic structure factors Sμμ(q=π,ω), μ=x,z bear the characteristic signatures of several different phase transitions. In the s=1 Heisenberg antiferromagnet, the intrinsic linewidth (at fixed q) of Sμμ(q,ω) is larger for small q than for q near π, in contrast to well-established results for the corresponding s=1/2 model.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.355519
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