Abstract
Abstract The effect of chemical pressure on the ferromagnetic insulator ground state and its effect on magnetotransport and magnetocaloric properties has been explored in this study. Magnetic and magnetotransport measurements reveal that the increased chemical pressure in Pr 0.6 La 0.2 Sr 0.2 MnO 3 due to the partial substitution by La in Pr 0.8 Sr 0.2 MnO 3 compound change the low-temperature insulator phase to the metallic phase. A room temperature enhancement of magnetoresistance (MR), as well as large relative cooling power (RCP), have been achieved with increasing chemical pressure in x = 0.2 compound. This enhancement of MR and magnetocaloric effect (MCE) in Pr 0.6 La 0.2 Sr 0.2 MnO 3 compound have been attributed to the short- range ferromagnetic cluster formation at higher temperature ( T > T C ) .
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
