Dynamical Magnetic Susceptibility for the - Model
arXiv:cond-mat/9607034 · doi:10.1016/S0921-4526(96)00663-1
Abstract
We present results for the {\em dynamical}\/ magnetic susceptibility of the - model, calculated with the dynamical mean field theory. For we find enhanced ferromagnetic correlations but an otherwise relatively -independent dynamical magnetic susceptibility. For the explicit antiferromagnetic exchange leads to a dynamic spin structure factor with the expected peak at the antiferromagnetic Bragg point.
3 pages LaTeX, postscript figures included, submitted as contribution to SCES' 96, to appear in Physica B