Distortion of the microstructure in Bi1.8Pb0.2Sr2-xCuOy system

Citation
Hj. Yan et al., Distortion of the microstructure in Bi1.8Pb0.2Sr2-xCuOy system, PHYSICA C, 309(3-4), 1998, pp. 263-268
Citations number
24
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA C
ISSN journal
09214534 → ACNP
Volume
309
Issue
3-4
Year of publication
1998
Pages
263 - 268
Database
ISI
SICI code
0921-4534(199812)309:3-4<263:DOTMIB>2.0.ZU;2-S
Abstract
We investigate the Raman scattering and electron diffraction (ED) for the n ominal composition of Bi1.8Pb0.2Sr2-xCuOy samples. It is found that the Sr vacancies bring about the distortion of Sr-O bond as well as the reduction of the incommensurate modulation with decreasing Sr content in Bi1.8Pb0.2Sr 2-xCuOy. samples. Our analysis indicates that the characteristics in Raman scattering spectra can be explained well by the crystal misfit model. (C) 1 998 Published by Elsevier Science B.V. All rights reserved.