THE INFLUENCE OF SPIN FLUCTUATIONS ON THE PHYSICAL-PROPERTIES OF HIGH-TC MATERIALS

被引：14
|
作者：
SCHRIEFFER, JR
机构：
[1] Department of Physics, University of California, Santa Barbara
来源：
PHYSICA C | 1991年 / 185卷
基金：
美国国家科学基金会;
关键词：
D O I：
10.1016/0921-4534(91)91944-Y
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The interaction of holes with antiferromagnetic spin fluctuations in doped cuprates is discussed in both the weak and strong coupling limits. The elementary excitations in the normal phase are spin bags corresponding to a hole of spin 1/2 and charge e surrounded by a region of suppressed spin fluctuations. The relation to photoemission spectra, including the pinning of the chemical potential in the gap, is presented. Finally, a new approach to the strongly correlated metal state is presented, based on a quantum generalization of the quartic Ginzburg-Landau action functional. This method holds promise for treating all coupling strengths.
引用
收藏
页码：17 / 27
页数：11
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