Generalized Kondo lattice model and its spin-polaron realization by the projection method for cuprates

被引：0
作者：
V. V. Valkov
D. M. Dzebisashvili
A. F. Barabanov
机构：
[1] RAS,Kirensky Institute of Physics, Siberian Branch
[2] Reshetnyov Siberian State Aerospace University,Institute for High Pressure Physics
[3] RAS,undefined
来源：
Theoretical and Mathematical Physics | 2017年 / 191卷
关键词：
strong electron correlation; spin–fermion model; Kondo lattice model; spin polaron;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The spin–fermion model, which is an effective low-energy realization of the three-band Emery model after passing to the Wannier representation for the px and py orbitals of the subsystem of oxygen ions, reduces to the generalized Kondo lattice model. A specific feature of this model is the existence of spin-correlated hoppings of the current carriers between distant cells. Numerical calculations of the spectrum of spin-electron excitations highlight the important role of the long-range spin-correlated hoppings.
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页码：752 / 763
页数：11
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