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We report on the magnetic and magnetocaloric properties of 50% Fe3+ doped polycrystalline HoCrO3 compounds in the vicinity of magnetic transitions. Due to complex magnetic interactions, we do see multiple… Click to show full abstract
We report on the magnetic and magnetocaloric properties of 50% Fe3+ doped polycrystalline HoCrO3 compounds in the vicinity of magnetic transitions. Due to complex magnetic interactions, we do see multiple transitions in χ vs. T graph pertinent to HoCrO3 and HoCr0.5Fe0.5O3 compounds related with Ho3+ ordering, Cr3+ ordering and spin – reorientation (SR). Due to re-orientation of spins, metamagnetic transitions are evident in low field regime of M vs. H. Quantified values of -ΔSM around Ho3+ ordering infer that indeed Fe3+ substitution helped in enhancing magnetocaloric effect of HoCrO3 compound. Such an enhanced -ΔSM values are ascribed to increase in canting of Fe/Cr spins. Present results would be helpful in developing magnetic refrigerant materials for space applications particularly below 30 K.
Journal Title: Journal of Alloys and Compounds
Year Published: 2017
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