Crystal structure, magnetic properties, and magnetocaloric effect in B-site disordered RE2CrMnO6 (RE = Ho and Er) perovskites
Source abstract
Abstract
Abstract In this work, polycrystalline oxides viz., Ho2CrMnO6 (HCMO) and Er2CrMnO6 (ECMO), were prepared using the sol-gel process, and their crystal structure, magnetic properties, and magnetocaloric effects (MCEs) were studied. X-ray refinement results demonstrate that both oxides exhibited the B-site disordered perovskite type structure (Pbnm space group). A ferromagnetic-paramagnetic phase transition as well as large reversible MCEs was also observed at Curie temperatures (TC) of ~6.1 and ~5.2 K for HCMO and ECMO, respectively. For a magnetic field change (ΔH) of 0–7 T, the maximum magnetic entropy change (-ΔSM), temperature-averaged entropy change (TEC 3), and relative cooling power (RCP) were estimated to be 11.03 J/kgK, 11.02 J/kgK, and 322.7 J/kg for HCMO, and 12.94 J/kgK, 12.80 J/kgK and 277.5 J/kg for ECMO.
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Research context
OpenAlex topics: Magnetic and transport properties of perovskites and related materials · Multiferroics and related materials · Advanced Condensed Matter Physics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (42)
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