Optical absorption of CuGeO3

被引：50

作者：

Bassi, M

Camagni, P

Rolli, R

Samoggia, G

Parmigiani, F

Dhalenne, G

Revcolevschi, A

机构：

[1] IST NAZL FIS MAT, SEZ PAVIA, PAVIA, ITALY

[2] POLITECN MILAN, I-20133 MILAN, ITALY

[3] IST NAZL FIS MAT, SEZ MILANO, MILAN, ITALY

[4] UNIV PARIS 11, UA CNRS 446, LAB SOLIDES CHIM, F-91405 ORSAY, FRANCE

来源：

PHYSICAL REVIEW B | 1996年 / 54卷 / 16期

关键词：

D O I：

10.1103/PhysRevB.54.R11030

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The absorption coefficient of CuGeO3 was measured in the energy range of 1-4 eV, in a temperature interval between 300 and 20 K, for light polarized along the b and c crystal axes. A weak absorption band at 1.7 eV is attributed to copper d-d transitions partially allowed by electron-phonon interactions; this is followed by a region of transparency leading to a strong exponential edge above 3 eV, which is identified with the onset of charge-transfer transitions.

引用

页码：11030 / 11033

页数：4

共 29 条

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