Spin Liquid State around a Doped Hole in Insulating Cuprates
Strongly Correlated Electrons
2009-10-31 v2 Superconductivity
Abstract
The numerically exact diagonalization study on small clusters of the t-J model with the second- and third- neighbor hopping terms shows that a novel spin liquid state is realized around a doped hole with momentum k=(pi,0) and energy \sim 2J compared with that with (pi/2,pi/2) in insulating cuprates, where the spin and charge degrees of freedom are approximately decoupled. Our finding implies that the excitations in the insulating cuprates are mapped onto the the d-wave resonating valence bond state.
Cite
@article{arxiv.cond-mat/9904231,
title = {Spin Liquid State around a Doped Hole in Insulating Cuprates},
author = {T. Tohyama and Y. Shibata and S. Maekawa and Z. -X. Shen and N. Nagaosa and L. L. Miller},
journal= {arXiv preprint arXiv:cond-mat/9904231},
year = {2009}
}
Comments
4 pages, 4 EPS figures, to be published in J. Phys. Soc. Jpn. Vol. 69, No.1 January, 2000