一维扩展Hubbard模型在强耦合极限下的磁化率
来源期刊：中南大学学报(自然科学版)1986年第5期
论文作者：徐慧
文章页码：86 - 89
关键词：Hubbard模型； 磁化率； 强耦合
Key words：Hubbard model； Strong-coupling； Magnetic susceptibility
摘 要：本文在强耦合极限下,讨论了一维扩展Hubbard模型的磁化率性质,并得到铁磁性、反铁磁性和顺磁性在此模型中都可能出现的结论。特别是在磁化率的表达式中出现了相当于有两种点阵存在时的交换积分J1和J2,而此模型只考虑了一种点阵。
Abstract: Magnetic susceptibility properties of the one-dimensional extended Hubbardmodel are discussed for strong-coupling. Ferromagnetism, antiferromagnetism andparamagnetism appeared in this model, especially, corresponds to exchange parame-ters J1 and J2 of two sublattices type appearing in the expression of magnetic sus- ceptibility. But a lattice type is only considered in this model.
