Modern rare-earth-containing magnetocaloric materials: Standing on the shoulders of giant Gd5Si2Ge2

Law, Jia Yan; Franco, Victorino

doi:10.1016/bs.hpcre.2023.10.004

Handbook on the Physics and Chemistry of Rare Earths

2023

DOI: 10.1016/bs.hpcre.2023.10.004

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Modern rare-earth-containing magnetocaloric materials: Standing on the shoulders of giant Gd5Si2Ge2

Jia Yan Law,

Victorino Franco

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2024

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Cited by 19 publications

References 330 publications

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Enhanced Cryogenic Magnetocaloric Effect from 4f‐3d Exchange Interaction in B‐Site Ordered Gd₂CuTiO₆ Double Perovskite Oxide

Zhang,

Na,

Hao

et al. 2024

Adv Funct Materials

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Magnetic refrigeration based on the principle of the magnetocaloric effect (MCE) in magnetic solids has been considered as a prospective cooling technology. Exploring suitable magnetocaloric materials (MCMs) is a vital prerequisite for practical applications. Herein, an excellent cryogenic MCM—the B‐site‐ordered Gd2CuTiO6 double perovskite (DP) oxide—which exhibits the largest MCE among known Gd‐based DP oxides, is identified. Such enhanced cryogenic MCE in the Gd2CuTiO6 DP oxide likely stems from the exchange interaction effect between Gd‐4f and Cu‐3d magnetic sublattices. Under a magnetic field change of 0–7 T, the maximum magnetic entropy change (−ΔSTmax) of the Gd2CuTiO6 DP oxide reaches 51.4 J kg−1 K−1 (378.2 mJ cm−3 K−1), which is much larger than that of the commercialized magnetic refrigerant Gd3Ga5O12, which is 38.3 J kg−1 K−1 (271.2 mJ cm−3 K−1), and it is also superior to most of the recently reported benchmarked cryogenic MCMs, indicating the possibility for practical applications. This work also provides a productive route for future cryogenic MCM design by harnessing 4f–3d exchange interactions.

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Enhanced Cryogenic Magnetocaloric Effect from 4f‐3d Exchange Interaction in B‐Site Ordered Gd₂CuTiO₆ Double Perovskite Oxide

Zhang,

Na,

Hao

et al. 2024

Adv Funct Materials

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Perspectives and Energy Applications of Magnetocaloric, Pyromagnetic, Electrocaloric, and Pyroelectric Materials

Klinar,

Law,

Franco

et al. 2024

Advanced Energy Materials

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This perspective provides an overview of the state of research and innovation in the areas of magnetocaloric and pyromagnetic materials, and electrocaloric and pyroelectric materials, including the overlapping sub‐areas of multicaloric and multipyro materials that can operate simultaneously under the application of magnetic and electric fields. These materials are critically examined for their potential to revolutionize cooling, heating, and energy‐harvesting applications. This perspective first summarizes the state‐of‐the‐art advancements and highlights recent significant developments. Then, it is identified and discussed that the prevailing challenges hindering the widespread adoption of technologies based on these materials. In this context, after consulting with members of the caloric and pyro communities, a technology roadmap is outlined to guide research efforts in overcoming current barriers to applications, with the goal of achieving impactful results by 2040. This roadmap emphasizes the importance of focusing on under‐researched materials, novel devices, and application spaces, paving the way for interdisciplinary efforts that can lead to significant reductions in carbon dioxide emissions.

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Magnetic properties and magnetocaloric effect (MCE) in the Er2BaNi1−xZnxO5 oxides

Shen,

Luo,

et al. 2024

J Mater Sci: Mater Electron

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Modern rare-earth-containing magnetocaloric materials: Standing on the shoulders of giant Gd5Si2Ge2

Cited by 19 publications

References 330 publications

Enhanced Cryogenic Magnetocaloric Effect from 4f‐3d Exchange Interaction in B‐Site Ordered Gd₂CuTiO₆ Double Perovskite Oxide

Enhanced Cryogenic Magnetocaloric Effect from 4f‐3d Exchange Interaction in B‐Site Ordered Gd₂CuTiO₆ Double Perovskite Oxide

Perspectives and Energy Applications of Magnetocaloric, Pyromagnetic, Electrocaloric, and Pyroelectric Materials

Magnetic properties and magnetocaloric effect (MCE) in the Er2BaNi1−xZnxO5 oxides

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About

Modern rare-earth-containing magnetocaloric materials: Standing on the shoulders of giant Gd5Si2Ge2

Cited by 19 publications

References 330 publications

Enhanced Cryogenic Magnetocaloric Effect from 4f‐3d Exchange Interaction in B‐Site Ordered Gd2CuTiO6 Double Perovskite Oxide

Enhanced Cryogenic Magnetocaloric Effect from 4f‐3d Exchange Interaction in B‐Site Ordered Gd2CuTiO6 Double Perovskite Oxide

Perspectives and Energy Applications of Magnetocaloric, Pyromagnetic, Electrocaloric, and Pyroelectric Materials

Magnetic properties and magnetocaloric effect (MCE) in the Er2BaNi1−xZnxO5 oxides

Contact Info

Product

Resources

About

Enhanced Cryogenic Magnetocaloric Effect from 4f‐3d Exchange Interaction in B‐Site Ordered Gd₂CuTiO₆ Double Perovskite Oxide

Enhanced Cryogenic Magnetocaloric Effect from 4f‐3d Exchange Interaction in B‐Site Ordered Gd₂CuTiO₆ Double Perovskite Oxide