Magnetic and magnetocaloric properties in polycrystalline La0.2Gd0.5Ba0.3MnO3 compound

The detail magnetic measurements of the polycrystalline La0.2Gd0.5Ba0.3MnO3 (LGBMO) compound have been presented in this manuscript. The compound shows high value of magnetocaloric effect (MCE) (-ΔS=9.1J/kg-K at 12 K) at low temperature. The experimental results of magnetization and magnetic memory effect confirm the existence of glassy magnetic phase in the compound at the low temperature (T<35K). The rejuvenation study further substantiates the presence of glassy phase. This high value of MCE in the LGBMO compound has been addressed by the presence of the glassy phase.