Thermoelectric power of single-phase samples of Tl2CaBa2Cu2O y and Ba2CaSr2Cu2O y

Autor:	J. V. Yakhmi, I K Gopalakrishnan, C. K. Subramaniam, V Vijayashree, R M Iyer, Raghavan Srinivasan, P.V.P.S.S. Sastry
Rok vydání:	1991
Předmět:	Superconductivity Materials science Condensed matter physics Doping chemistry.chemical_element Atmospheric temperature range Exponential function Bismuth chemistry Mechanics of Materials Seebeck coefficient Thallium General Materials Science Matrix method
Zdroj:	Bulletin of Materials Science. 14:827-830
ISSN:	0973-7669 0250-4707
DOI:	10.1007/bf02744734
Popis:	Single-phase 2122 samples of thallium and bismuth superconductors were made by the precursor matrix method. The thermopower of these samples was measured in the temperature range 250 K-Tc . The thermopower was positive and decreased linearly with increasing temperature above Tc (onset). The exponential enhancement of thermopower seen in the undoped and doped YBCO was not observed in these samples. The linear variation of thermopower can be explained on the basis of either a two-band model or a narrow band model. ? 1991 Indian Academy of Sciences.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d18424546888bda8b4b6a34c964804d https://doi.org/10.1007/bf02744734 Zobrazit plný text záznamu Full text from SpringerLink