ELECTRON TRANSITIONS AT 0.1-0.6 EV AND DC-CONDUCTIVITY IN THE SEMICONDUCTING PHASE OF LA2CUO4+X SINGLE-CRYSTALS

被引：12

作者：

BAZHENOV, AV ^{[1
]}

GORBUNOV, AV ^{[1
]}

REZCHIKOV, KB ^{[1
]}

FURSOVA, TN ^{[1
]}

ZAKHAROV, AA ^{[1
]}

TSETLIN, MB ^{[1
]}

机构：

[1] IV KURCHATOV INST,RUSSIAN SCI CTR,MOSCOW 123182,RUSSIA

来源：

PHYSICA C | 1993年 / 208卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(93)90688-M

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Infrared reflection spectra R(nu) and DC-conductivity sigma(DC) in the semiconducting antiferromagnetic phase of La2CuO4+delta single crystals have been investigated. A set of 110, 156, 240 and 550 meV clectron transitions active in E perpendincular-to C polarization has been revealed. As a result of the study of the temperature dependence of R(nu) and sigma(DC), the oxygen content x being varied, a model of spin-polaron complexes has been proposed. This model allows one to qualitatively explain the properties of electron transitions and DC-conductivity.

引用

页码：197 / 204

页数：8

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