Magnetic fluctuations and resonant peak in cuprates: a microscopic theory
Strongly Correlated Electrons
2016-08-31 v1 Superconductivity
Abstract
The theory for the dynamical spin susceptibility within the t-J model is developed, as relevant for the resonant magnetic peak and normal-state magnetic response in superconducting (SC) cuprates. The analysis is based on the equations of motion for spins and the memory-function presentation of magnetic response where the main damping of the low-energy spin collective mode comes from the decay into fermionic degrees of freedom. It is shown that the damping function at low doping is closely related to the c-axis optical conductivity. The analysis reproduces doping-dependent features of the resonant magnetic scattering.
Cite
@article{arxiv.cond-mat/0211090,
title = {Magnetic fluctuations and resonant peak in cuprates: a microscopic theory},
author = {I. Sega and P. Prelovsek and J. Bonca},
journal= {arXiv preprint arXiv:cond-mat/0211090},
year = {2016}
}
Comments
4 pages, 2 figures