RESONANT IMPURITY SCATTERING IN A STRONGLY CORRELATED ELECTRON MODEL

被引：100

作者：

POILBLANC, D

SCALAPINO, DJ

HANKE, W

机构：

[1] UNIV TOULOUSE 3,PHYS QUANT LAB,F-31062 TOULOUSE,FRANCE

[2] UNIV WURZBURG,INST PHYS,W-8700 WURZBURG,GERMANY

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 06期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.72.884

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Scattering by a single impurity introduced in a strongly correlated electronic system is studied by exact diagonalization of small clusters. It is shown that an inert site which is spinless and unable to accommodate holes can give rise to strong resonant scattering. A calculation of the local density of state reveals that, for increasing antiferromagnetic exchange coupling, d-, s-, and p-wave symmetry bound states in which a mobile hole is trapped by the impurity potential induced by a local distortion of the antiferromagnetic background successively pull out from the continuum.

引用

页码：884 / 887

页数：4

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