ASYMPTOTICALLY EXACT SOLUTION OF A LOCAL COPPER-OXIDE MODEL

被引：17

作者：

ZHANG, GM ^{[1
]}

YU, L ^{[1
]}

机构：

[1] ACAD SINICA,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.72.2474

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present an asymptotically exact solution of a local copper-oxide model abstracted from the multiband models. The phase diagram is obtained through the renormalization-group analysis of the partition function. In the strong coupling regime, we find an exactly solved line, which crosses the quantum critical point of the mixed valence regime separating two different Fermi-liquid (FL) phases. At this critical point, a many-particle resonance is formed near the chemical potential, and a marginal-FL spectrum can be derived for the spin and charge susceptibilities.

引用

页码：2474 / 2477

页数：4

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