SINGLE-PARTICLE SPECTRAL WEIGHT OF A 2-DIMENSIONAL HUBBARD-MODEL

被引：97

作者：

DAGOTTO, E

ORTOLANI, F

SCALAPINO, D

机构：

[1] FLORIDA STATE UNIV,CTR MAT RES & TECHNOL,TALLAHASSEE,FL 32306

[2] UNIV CALIF SANTA BARBARA,DEPT PHYS,SANTA BARBARA,CA 93106

[3] UNIV CALIF SANTA BARBARA,INST THEORET PHYS,SANTA BARBARA,CA 93106

[4] UNIV BOLOGNA,INST NAZL FIS NUCL,DIPARTIMENTO FIS,I-40126 BOLOGNA,ITALY

来源：

PHYSICAL REVIEW B | 1992年 / 46卷 / 05期

关键词：

D O I：

10.1103/PhysRevB.46.3183

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Numerical results for the single-particle spectral weight A(p,omega) and the density of states N(omega) for a 4x4 Hubbard model are presented. Both the half filled insulating state and the doped metallic state are considered. At half filling the numerical results are compared with the mean-field spin-density-wave single-particle spectral weight, and away from half filling with a renormalized quasiparticle band description. The relationship of these results to experimental photoemission, inverse photoemission, and angular-resolved measurements is discussed.

引用

页码：3183 / 3186

页数：4

共 26 条

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