额外次近邻hopping对t-J模型中自旋动力学的影响
强关联电子
2007-05-23 v1 超导电性
摘要
我们在fermion-spin理论中研究了额外次近邻hopping t'对t-J模型中自旋动力学的影响。尽管额外的次近邻hopping t'系统性地伴随着动力学自旋结构函数和susceptibility的降低，但动力学自旋结构函数和susceptibility的定性行为与t-J模型的情况相同。我们还发现，在欠掺杂 regime中，积分后的动力学自旋结构函数几乎与t'无关。
引用
@article{arxiv.cond-mat/0006081,
title = {Effect of the additional second neighbor hopping on the spin dynamics in the t-J model},
author = {Xianglin Le and Feng Yuan and Shiping Feng},
journal= {arXiv preprint arXiv:cond-mat/0006081},
year = {2007}
}
备注
6 pages, Latex, Two figures are included, accepted for publication in the Proceedings of International Conference on Materials and Mechanisms of Superconductivity and High Temperature Superconductors VI