Dynamical structure factor for Haldane-gap antiferromagnets
J M Wesselinowa; J M Wesselinowa; University of Sofia, Faculty of Physics, 5 Blvd J Bouchier, 1164 Sofia, Bulgaria
Журнал:
Journal of Physics: Condensed Matter
Дата:
1999-05-17
Аннотация:
The dynamical properties of a spin-1 chain with single-ion easy-plane anisotropy are studied by a Green's function technique. The longitudinal and transverse dynamical structure factors (DSFs) have been obtained from the imaginary part of the Green's functions. The static DSFs as a function of the momentum are numerically calculated.
80.18Кб