Naslov
Thermoelectric power in Bi2Sr2Ca1-xPrxCu2O8+delta in a wide temperature range

Autori
Smiljanić, Igor ; Barišić, Neven ; Smontara, Ana ; Forro, Laszlo

Izvornik
Strojarstvo (0562-1887) 48 (2006), 1/2; 39-44

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, kongresno priopćenje, znanstveni

Ključne riječi
thermopower; resistance; high-temperature superconductivity; cuprates

Sažetak
We report thermopower and electrical resistance measurements of the high-temperature superconductor Bi2Sr2Ca1-xPrxCu2O8+δ in a wide temperature range from 600 K to superconducting transition temperature (critical temperature, Tc). The transition temperature decreases with increasing x. Resistance obeys usual metallic linearity at higher temperatures, whereas at lower temperatures, before Tc (T~300 K), a deviation from the linear trend is observed. Thermopower exhibits apparently non-metallic behavior, it increases with decreasing temperature and develops a broad maximum whose position and width increase with x. The results are discussed in the framework of several models present in the literature.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

Napomena
Rad je prikazan na 12. susretu vakuumista Hrvatske i Slovenije, 18.05.2005.

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