ANTIFERROMAGNETISM OF CUO2 LAYERS WITHIN A SLAVE-BOSON APPROACH

被引：10

作者：

ARRIGONI, E ^{[1
]}

STRINATI, G ^{[1
]}

CASTELLANI, C ^{[1
]}

机构：

[1] UNIV ROME LA SAPIENZA,DEPARTIMENTO FIS,I-00185 ROME,ITALY

来源：

PHYSICAL REVIEW B | 1990年 / 41卷 / 07期

关键词：

D O I：

10.1103/PhysRevB.41.4838

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The antiferromagnetic ground state of CuO2 layers is studied at the mean-field level within a slave-boson approach to a multiband Hubbard model which includes the dx2-y2 orbital for Cu and the px and py orbitals for O. The stability of the antiferromagnetism is tested by varying the separation between p- and d-hole energy levels and by allowing direct O-O hopping. Results for the effective exchange integral, the antiferromagnetic gap, the percentage of d character of holes at the Fermi level, and the Cu magnetic moment are discussed by varying. © 1990 The American Physical Society.

引用

页码：4838 / 4841

页数：4

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