Dynamic spin susceptibility in the t-J model
Strongly Correlated Electrons
2007-05-23 v1
Abstract
Dynamic spin susceptibility is calculated for the t-J model in the paramagnetic phase by applying the memory function method in terms of the Hubbard operators. A self-consistent system of equations for the memory function is obtained within the mode coupling approximation. Both itinerant hole excitations and localized spin fluctuations give contributions to the memory function. Spin dynamics have a diffusive character in the hydrodynamic limit; spin-wave-like excitations are regained in the high-frequency region.
Keywords
Cite
@article{arxiv.cond-mat/9909019,
title = {Dynamic spin susceptibility in the t-J model},
author = {G. Jackeli and N. M. Plakida},
journal= {arXiv preprint arXiv:cond-mat/9909019},
year = {2007}
}