Year: 1996
Type: article
Abstract: The temperature-dependent thermoelectric power S of insulating and metallic Bi-2212 and Tl-2212 samples are scaled to universal master curves. For insulating samples, S passes through a peak at a characteristic temperature , which decreases with increasing carrier concentration. For metallic samples a scaling parameter (= dS/dT at high temperatures) decreases with increasing carrier density. It is argued that is related to the energy needed for activation conduction whereas the change in may be due to increase in with carrier density, where n is the concentration and is the effective mass of the carriers.
Authors: J B Mandal, A N Das, B Ghosh
Institution: Saha Institute of Nuclear Physics
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W1963791339