CHARGE STATE OF COPPER IN BI2SR2CA1-XYXCU2O8+DELTA

被引：7

作者：

BABUSHKINA, NA

DOBROTVORSKAYA, MV

KASATKINA, NA

POLTORATSKY, YB

SOBOLEV, VL

KUCHEIKO, SV

机构：

[1] ACAD SCI UKSSR,INST SINGLE CRYSTALS,KHARKOV,UKRAINE,USSR

[2] CHEM TECHNOL INST,MOSCOW,USSR

来源：

PHYSICA C | 1992年 / 197卷 / 3-4期

关键词：

D O I：

10.1016/0921-4534(92)90012-2

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The charge states of copper in Bi2Sr2Ca1-xYxCu2O8+delta compounds with different yttrium concentrations have been investigated by means of X-ray photoelectron spectroscopy. It is shown that doping with yttrium leads to the diminution of hole numbers in the CuO2 planes. At the same time, a decrease in the contribution of the Cu3d9 (Cu2+) configuration to the electron structure of this compound has been observed. The reduction of carrier density is accompanied by a variation of alkali earth spectrum shape.

引用

页码：299 / 302

页数：4

共 13 条

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