ELECTRON-PHONON COUPLING OF APEX OXYGEN IN RBA2CU3O7-DELTA

被引：51

作者：

FRIEDL, B

THOMSEN, C

SCHONHERR, E

CARDONA, M

机构：

[1] Max-Planck-Institut für Festkörperforschung, D-7000 Stuttgart 80

来源：

SOLID STATE COMMUNICATIONS | 1990年 / 76卷 / 09期

关键词：

D O I：

10.1016/0038-1098(90)90974-G

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The electron-phonon coupling constants of the stretching and bending vibrations of the apex oxygen in RBa2Cu3O7-δ are determined by Raman scattering: λv = 0.01, λv < 0.003, λv < 0.02 for the modes at 500 cm-1 (Ag, 305 cm-1 (B3g) and 200 cm-1 (B2g), respectively. By substituting different rare earths R it was found that the frequencies of the bending vibrations depend roughly linearly on the ionic radius of the rare earth R. © 1990.

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页码：1107 / 1110

页数：4

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