GROUND-STATE PROPERTIES OF THE 2-DIMENSIONAL SPIN FERMION MODEL

被引：4
|
作者：
FURUKAWA, N
IMADA, M
机构：
[1] Institute for Solid State Physics, University of Tokyo, Minato-ku, Tokyo, 106
来源：
PHYSICA C | 1991年 / 185卷 / pt 3期
关键词：
1;
D O I：
10.1016/0921-4534(91)90847-R
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Two dimensional spin-fermion model is studied by using the perturbation method and the spin wave approximation. Non-crossing diagrams are calculated using the dominant pole approximation. As a result, we see that the renormalization parameter z is reduced as z is-proportional-to L-1/4, where L is the linear dimension of the system, and the doped fermion becomes totally incoherent in the thermodynamic limit.
引用
收藏
页码：1441 / 1442
页数：2
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