OBSERVATION OF PHONON SHIFTS IN BI2SR2CA1-XYXCU2O8 AND RELATED HIGH-TEMPERATURE SUPERCONDUCTORS

被引：16

作者：

RENKER, B

GOMPF, F

GERING, E

EWERT, D

机构：

[1] Kernforschungszentrum Karlsruhe, Germany

来源：

PHYSICA C | 1989年 / 162卷 / pt1期

关键词：

Bismuth Compounds - Ceramic Materials - Neutrons--Scattering - Phonons;

D O I：

10.1016/0921-4534(89)91106-4

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

By means of inelastic neutron scattering the phonon density of states (PDOS) has been measured for 123-O7 and Bi2Sr2CaCu2O8+δ superconductors and different reference compounds. The transition from a superconducting to a semiconducting material is paralleled by characteristic changes in the PDOS. Our results are discussed on the basis of model calculations and it can be shown that high frequency oxygen vibrations in the Cu-O sublattice are strongly renormalized in the superconducting compounds.

引用

页码：462 / 463

页数：2