RESONANT RAMAN-SCATTERING IN THE PB2SR2(Y,CA)CU3O8+DELTA SUPERCONDUCTOR

被引：14

作者：

HEYEN, ET

LIU, R

GARRIGA, M

GEGENHEIMER, B

THOMSEN, C

CARDONA, M

机构：

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

来源：

PHYSICAL REVIEW B | 1990年 / 41卷 / 01期

关键词：

D O I：

10.1103/PhysRevB.41.830

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have measured resonant phonon Raman profiles of a superconducting Pb2Sr2Y0.75Ca0.25Cu3O8+ crystal for laser energies from 1.65 to 2.7 eV. The resonances at 1.75 and 2.55 eV and the rise towards the uv, also seen in ellipsometry, are assigned to transitions involving the &O(3) px,y, and Pb-O(1) complexes. There exists a relationship between the phonon-induced atomic motions and the location in the unit cell of the electronic transition. We also assign additional peaks that appear under resonant conditions. © 1990 The American Physical Society.

引用

页码：830 / 833

页数：4

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