ELECTRONIC-STRUCTURE OF BI2CUO4

被引：29

作者：

GOLDONI, A

DELPENNINO, U

PARMIGIANI, F

SANGALETTI, L

REVCOLEVSCHI, A

机构：

[1] TECNOL INNOVAT SPA,CTR INFORMAZ STUDI & ESPERIENZE,DIV MAT,MILAN,ITALY

[2] UNIV COMO,FAC SCI,COMO,ITALY

[3] UNIV PAVIA,DIPARTIMENTO FIS A VOLTA,I-27100 PAVIA,ITALY

[4] UNIV PARIS 11,CHIM SOLIDES LAB,CNRS,U446,F-91405 ORSAY,FRANCE

来源：

PHYSICAL REVIEW B | 1994年 / 50卷 / 15期

关键词：

D O I：

10.1103/PhysRevB.50.10435

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The electronic structure of a Bi2CuO4 Single crystal is investigated by x-ray photoelectron (XPS), x-ray Auger-electron (XAES), and electron-energy-loss (EELS) spectroscopies. The analysis of the XPS and XAES data confirms that Bi2CuO4 is a charge-transfer insulator with a band gap of about 2 eV, while the Cu-O bond in Bi2CuO4 is more ionic than in CuO and the Bi2Sr2CaCu2O8-delta superconductor. Furthermore, the density of the empty states is tentatively described from a combined analysis of the EELS and XPS data and some electronic transitions are identified from the EELS spectra.

引用

页码：10435 / 10441

页数：7

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