Abstract
Measurements of the thermoelectric power have been carried out on Bi1.7Pb0.3Sr2Ca2-xSmxCu3Oy (0.0≤x ≤2.0) specimens between 77 K and 300 K. The hole-carrier concentrations were calculated from the room-temperature thermopower values and it was found to decrease with increasing Sm concentration. The temperature variation of the thermopower is similar for all the samples and has indicated a two-band conduction. The results also have suggested an increased interaction of electrons and holes with phonons at low temperatures. The thermopower has attained a maximum value just above the transition temperature and thereafter decreased with increasing temperature. The thermopower value has also undergone a sign change at a temperature which varied systematically with Sm concentration. The results are presented and discussed.
Original language | English |
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Pages (from-to) | 49-53 |
Number of pages | 5 |
Journal | Physica C: Superconductivity and its applications |
Volume | 252 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 1995 Oct 1 |
Externally published | Yes |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering