Properties and Detection of Spin Nematic Order in Strongly Correlated Electron Systems
Strongly Correlated Electrons
2009-11-10 v2
Abstract
A spin nematic is a state which breaks spin SU(2) symmetry while preserving translational and time reversal symmetries. Spin nematic order can arise naturally from charge fluctuations of a spin stripe state. Focusing on the possible existence of such a state in strongly correlated electron systems, we build a nematic wave function starting from a t-J type model. The nematic is a spin-two operator, and therefore does not couple directly to neutrons. However, we show that neutron scattering and Knight shift experiments can detect the spin anisotropy of electrons moving in a nematic background. We find the mean field phase diagram for the nematic taking into account spin-orbit effects.
Keywords
Cite
@article{arxiv.cond-mat/0411159,
title = {Properties and Detection of Spin Nematic Order in Strongly Correlated Electron Systems},
author = {Daniel Podolsky and Eugene Demler},
journal= {arXiv preprint arXiv:cond-mat/0411159},
year = {2009}
}
Comments
13 pages, 11 figures. (v2) References added