Tunable magnetic and magnetocaloric properties of scandium doped Gd3Fe5-xScxO12 garnet compound

Jolaikha Sultana,Jeotikanta Mohapatra,Romakanta Bhattarai,J. Ping Liu,Trevor David Rhone,Sanjay R. Mishra

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS（2023）

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摘要

•Significance of structural modifications in Gd3Fe5-xScxO12 for magnetic refrigeration applications.•XRD, DFT, Mossbauer spectral analysis, and magnetic data consistently support preferred Sc3+ substitution at the octahedral site (x < 1.0).•Enhanced magnetocaloric properties: High magnetic entropy change (-ΔSm) of 3.82 J/(kg·K) at 37.5 K, H = 5 T.•High relative cooling power (RCP) of 408 J/kg at H = 5 T for × = 0.25.•Potential practical applications as a magnetocaloric material.

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关键词

Magnetocaloric effect,Magnetic entropy,Magnetic Refrigeration,Autocombustion,Gadolinium Iron Garnet,X-ray Diffraction,Mossbauer spectroscopy

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