We report on the magnetic and magnetocaloric properties of 50% Fe3+doped polycrystalline HoCrO3compounds in the vicinity of magnetic transitions. Due to complex magnetic interactions, we do see multiple transitions in χ vs. T graph pertinent to HoCrO3and HoCr0.5Fe0.5O3compounds 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 -ΔSMaround Ho3+ordering infer that indeed Fe3+substitution helped in enhancing magnetocaloric effect of HoCrO3compound. Such an enhanced -ΔSMvalues 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. © 2017 Elsevier B.V.

Suryanarayana Jammalamadaka

Department of Physics

G. Kotnana

D.P. Sahu

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Journal	Data powered by TypesetJournal of Alloys and Compounds
Publisher	Data powered by TypesetElsevier Ltd
ISSN	09258388