Transport and magnetic properties have been studied in two sets of sol-gel
prepared Pr1/2βSr1/2βMnO3β nanoparticles having average particle
size of 30 nm and 45 nm. Our measurements suggest that the formation of charge
ordered state is largely affected due to lowering of particle size, but the
ferromagnetic transition temperature (TCβ) remains unaffected.Comment: Accepted in J. Appl. Phy