Effective spin Hamiltonian for high-temperature superconductors

被引：5
作者：
Chan, R [1 ]
Gulácsi, M [1 ]
机构：
[1] Australian Natl Univ, Inst Adv Studies, Dept Theoret Phys, Canberra, ACT 0200, Australia
来源：
JOURNAL OF SUPERCONDUCTIVITY | 2000年 / 13卷 / 06期
关键词：
spin gap; pseudo gap; effective spin interaction; impurity effects; Kondo lattice model; canonical transformation;
D O I：
10.1023/A:1026485821165
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
An effective spin Hamiltonian for the two-band Hubbard model of the high-T-c materials is derived by a canonical transformation that was calculated and summed up to infinite order. The spin interaction is obtained to be of Kondo type rather than t-J. We also discuss briefly the impact of the obtained result on understanding the spin gap.
引用
收藏
页码：917 / 919
页数：3
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