Structural and magnetocaloric properties of rare-earth orthoferrite perovskite: TmFeO3
作者： Poorva Sharma , R. Masrour , A. Jabar , Jiyu Fan , Ashwini Kumar
DOI: 10.1016/J.CPLETT.2019.137057
关键词: Orthoferrite 、 Orthorhombic crystal system 、 Magnetic refrigeration 、 Magnetic hysteresis 、 Thermodynamics 、 Cooling capacity 、 Rare earth 、 Materials science 、 Magnetic susceptibility 、 Refrigerant
摘要: Abstract We presented the structural, magnetic, and magnetocaloric data for perovskite TmFeO3. XRD revealed distorted orthorhombic structure (Pbnm) Spin-reorientation transition was confirmed through magnetic susceptibility. −ΔSM(max) is 13.72 Jkg-1 K−1 at temperature of 85 K under ΔH = 6 T, with RCP value 676 J/kg. values were increased applied field, possibly due to d-f exchange interactions. The hysteresis cycles are established different temperatures. These properties make it a potential candidate used refrigerants. For refrigeration application, very large capacity also required along entropy change value.
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