Phenomenological lattice model for dynamic spin and charge fluctuations in the cuprates
Abstract
Description
Motivated by recent neutron scattering experiments on the cuprate superconductors, we present a phenomenological framework describing the dynamics of collective spin excitations coupled to charge/bond order fluctuations. Our quantum lattice model contains two order parameter fields, and can capture spin excitations both in broken-symmetry states with static lattice modulations, as well as in homogeneous states where the charge/bond order is fluctuating. We present results for different types of static charge/bond order, namely site- and bond-centered stripes, and plaquette modulation.
5 pages, 3 figures; Proceedings of SNS 2004, Sitges, Spain
5 pages, 3 figures; Proceedings of SNS 2004, Sitges, Spain