Influence of lead content on temperature dependence of thermoelectric power of 2223 (BiPb) sintered cuprates

✍ Scribed by B. Chanda; S.K. Ghatak; T.K. Dey

• Book ID: 103059250
• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 575 KB
• Volume: 35
• Category: Article
• ISSN: 0011-2275
• DOI: 10.1016/0011-2275(95)90832-z

✦ Synopsis

The temperature dependence of the thermoelectric power (TEP) of Bi,_,Pb$+JIa,-CIJ~O~,,+~ pellets with 0 < x < 0.5 is reported between T,, and 300 K. The thermoelectric power values of all the samples were found to be positive and to increase almost linearly (dS/dT=-0.030 PV K-*) with decrease in temperature down to -120 K, before falling rapidly to zero at T,,. The results are analysed on the basis of different theoretical models and it is concluded that the measured TEP data could be explained extremely well (within 1%) using the modified two-band model proposed by Forro et al.