Observation of pressure-induced variation in magnetization and magnetic anisotropy for half-doped La0.5Ca0.5MnO3 nanoparticles

The effects of pressure on the magnetic properties of half-doped La0.5Ca0.5MnO3(LCMO) 0.5 Ca 0.5 MnO 3 (LCMO) were investigated. Pressure was found to decrease the transition temperature (Tc) T c ) from the paramagnetic (PM) phase to the ferromagnetic (FM) phase, from 226 K to 223 K. Moreover, the pressure was also involved in decreasing the transition temperature (TN) T N ) for the FM-antiferromagnetic (AFM) phase from 180 K to 175 K. Below T N , the inhomogeneous AFM phase, where both the FM and AFM phases coexist, is observed in LCMO. Pressure induces changes in the zero-field-cooled magnetization (Delta MZFC) Delta M ZFC ) exhibiting Delta M ZFC approximate to 0 in the PM region above 285 K.