Dynamical Magnetic Susceptibility for the t-J Model
Abstract
We present results for the dynamical\/ magnetic susceptibility of the t-J model, calculated with the dynamical mean field theory. For J=0 we find enhanced ferromagnetic correlations but an otherwise relatively q-independent dynamical magnetic susceptibility. For J>0 the explicit antiferromagnetic exchange leads to a dynamic spin structure factor with the expected peak at the antiferromagnetic Bragg point.
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