A bosonic RVB description of doped antiferromagnet
强关联电子
2007-05-23 v1 超导电性
摘要
We propose a theory for doped antiferromagnet based on a bosonic resonating-valence-bond (RVB) state with incorporating the phase string effect. Both antiferromagnetic (AF) and superconducting phase transitions occur naturally within such a bosonic RVB phase. Two distinct metallic regions -- underdoping and optimum-doping -- are also found to be a logic consequence, whose unique features explain the recent neutron-scattering measurements in cuprates.
引用
@article{arxiv.cond-mat/9710271,
title = {A bosonic RVB description of doped antiferromagnet},
author = {Z. Y. Weng and D. N. Sheng and C. S. Ting},
journal= {arXiv preprint arXiv:cond-mat/9710271},
year = {2007}
}
备注
4 pages, Revtex, 2 Postscript figures