Magnetotransport Coefficients of Sm0.55Sr0.45MnO3
R Suryanarayanan, V Gasumyants
Abstract
Measurements of Seebeck effect in 0 and 1.5 T and Nernst coefficient in 0.3,0.9 and 1.8 T as a function of temperature on a polycrystalline sample Sm0.55Sr0.45MnO3 are presented. The data point out conclusively that an increase inboth the carrier density and the mobility of the charge carriers is responsible for the observed colossal magnetoresistance
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