Poojary, Thrapthi and Babu, P D and Sanil, Tejaswini and Daivajna, Mamatha D (2018) Effect of gadolinium dopant on structural, magneto-transport, magnetic and thermo-power of Pr0.8Sr0.2MnO3. Solid State Communications. pp. 35-42. ISSN 0038-1098

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Abstract

In the present investigation structural, magneto-transport, magnetic and thermo-power measurements of Gadolinium (Gd) doped Pr0.8-xGdxSr0.2MnO3 (0, 0.2, 0.25 and 0.3) manganites have been done. All the samples are single phased with orthorhombic structure. Temperature variation of resistance exhibits a high temperature transition occurring at 156 K and a low temperature cusp at around 95 K for pristine sample. With Gd doping resistance behavior shows insulating behavior throughout the whole temperature range. Magneto-Resistance (MR %) increases with Gd doping. A huge increase in thermo-electric power is observed with Gd doping.

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