SPECTRUM OF PERSISTENT PHOTOCONDUCTIVITY IN YBACUO FILMS

被引：18

作者：

AYACHE, C ^{[1
]}

CHAPLYGIN, IL ^{[1
]}

KIRILYUK, AI ^{[1
]}

KREINES, NM ^{[1
]}

KUDINOV, VI ^{[1
]}

机构：

[1] ACAD SCI USSR, Inst Phys Problems, MOSCOW 117973, USSR

来源：

SOLID STATE COMMUNICATIONS | 1992年 / 81卷 / 01期

关键词：

D O I：

10.1016/0038-1098(92)90567-S

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Spectral dependencies of the persistent photoconductivity in YBa2Cu3O6.4 films have been measured at room temperature over the photon energy range 1.6-3.3 eV. Obtained spectra are well described by a set of six Lorentz peaks. We suggest a model in which the observed electronic transitions are ascribed to those in basis CuO2 planes between the conduction band (being formed by five d-orbitals of Cu2+ hybridized with p(x,y) - orbitals of O2-) and upper Hubbard unoccupied (3d(x2-y2) subband.

引用

页码：41 / 45

页数：5