Spin-fluctuation and spin-exciton mechanisms of superconductivity in cuprates

被引：0
|
作者：
M. M. Korshunov
S. G. Ovchinnikov
A. V. Sherman
机构：
[1] Russian Academy of Sciences,Kirensky Institute of Physics, Siberian Division
[2] University of Tartu,Institute of Physics
来源：
The Physics of Metals and Metallography | 2006年 / 101卷 / Suppl 1期
关键词：
74.20.Mn; 74.72.-h;
D O I：
10.1134/S0031918X06130035
中图分类号：
学科分类号：
摘要：
The properties of the normal and superconductive phases of p- and n-type cuprates are investigated in terms of the appropriate low-energy models in the approximation beyond Hubbard I with inclusion of spin fluctuations. The comparison of the singlet-triplet t-J model with the t-J model shows that the spin-exciton mechanism originated from the singlet-triplet hybridization contributes only slightly to the phase diagram of the p-type systems.
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页码：S6 / S9
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