Spin-Charge Separation in Two-dimensional Frustrated Quantum Magnets
Strongly Correlated Electrons
2007-05-23 v2
Abstract
The dynamics of a mobile hole in two-dimensional frustrated quantum magnets is investigated by exact diagonalization techniques. Our results provide evidence for spin-charge separation upon doping the kagome lattice, a prototype of a spin liquid. In contrast, in the checkerboard lattice, a symmetry broken Valence Bond Crystal, a small quasi-particle peak is seen for some crystal momenta, a finding interpreted as a restoration of weak holon-spinon confinement.
Cite
@article{arxiv.cond-mat/0310597,
title = {Spin-Charge Separation in Two-dimensional Frustrated Quantum Magnets},
author = {A. Laeuchli and D. Poilblanc},
journal= {arXiv preprint arXiv:cond-mat/0310597},
year = {2007}
}
Comments
4 pages, 6 figures