SPIN DYNAMICS AND THE DELOCALIZATION OF HOLE QUASI-PARTICLES

被引：12

作者：

GUNN, JMF ^{[1
]}

SIMONS, BD ^{[1
]}

机构：

[1] UNIV CAMBRIDGE,CAVENDISH LAB,CAMBRIDGE CB3 0HE,ENGLAND

来源：

PHYSICAL REVIEW B | 1990年 / 42卷 / 07期

关键词：

D O I：

10.1103/PhysRevB.42.4370

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Hole motion through a Heisenberg antiferromagnet is examined using a restricted set of spin configurations to describe the spin distortion around the hole. The hole induces spin singlets, not ferromagnetism at the (magnetic) Brillouin-zone boundary. An inherently many-particle band structure is found. Each band is associated with a different spin distortion around the hole. Most of the bands are found dispersionless, in agreement with photoemission data from the high-temperature superconducting cuprates. © 1990 The American Physical Society.

引用

页码：4370 / 4382

页数：13

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