The electronic structure and transport properties of Bi2Sr2−xLaxCaCu2Oy (x=0.0–0.8)
| Autor: | L.Z. Cao, G. G. Qian, Xianhui Chen, Keqing Ruan, C.Y. Wang, M.R. Ji |
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| Rok vydání: | 1999 |
| Předmět: |
Materials science
Valence (chemistry) Condensed matter physics X-ray photoelectron spectroscopy Electrical resistivity and conductivity Seebeck coefficient Energy Engineering and Power Technology Electronic structure Electrical and Electronic Engineering Condensed Matter Physics Electronic band structure Electronic Optical and Magnetic Materials |
| Zdroj: | Physica C: Superconductivity. 313:58-64 |
| ISSN: | 0921-4534 |
| DOI: | 10.1016/s0921-4534(99)00009-x |
| Popis: | Experiment on X-ray photoelectron spectroscopy of samples of Bi 2 Sr 2− x La x CaCu 2 O y 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 indicates 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 measured. The two-band model is applied to analyse the results of TEP. |
| Databáze: | OpenAIRE |
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