The electronic structure and transport properties of Bi2Sr2-xLaxCaCu2Oy (x=0.0-0.8)

Authors
Qian, GG Ruan, KQ Chen, XH Wang, CY Cao, LZ Ji, MR
Citation
Gg. Qian et al., The electronic structure and transport properties of Bi2Sr2-xLaxCaCu2Oy (x=0.0-0.8), PHYSICA C, 313(1-2), 1999, pp. 58-64
Citations number
24
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA C
ISSN journal
09214534 → ACNP
Volume
313
Issue
1-2
Year of publication
1999
Pages
58 - 64
Database
ISI
SICI code
0921-4534(19990210)313:1-2<58:TESATP>2.0.ZU;2-F
Abstract
Experiment on X-ray photoelectron spectroscopy of samples of Bi2Sr2-xLaxCaC u2Oy has been performed to investigate the distribution of La atoms on the cation sites and the change of valence of Bi and Cu atoms. The analysis ind icates that La mostly takes the place of Sr at Sr sites. An increase in the average valence of Bi and a decrease in that of Cu have been observed. The resistivity and thermoelectric power (TEP) of the samples have also been m easured. The two-band model is applied to analyse the results of TEP. (C) 1 999 Published by Elsevier Science B.V. All rights reserved.