Inorganic chemistry · 2026
Structure and Magnetocaloric Properties of Two Cadmium Gadolinium Borates.
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Wan Tingwei, Wang Yunhui, Chen Zuhua, Li Zhenxing, Zhao Yanan, Shen Jun, Tu Heng, Zhang Guochun
Аннотация
Two cadmium-gadolinium-borates, CdGdB5O10 and Cd4GdB3O10, were synthesized as polycrystalline samples, and their single crystals were also grown. Monoclinic structures in space groups P21/n and Cm were identified for the two compounds, with magnetic properties characterized through M-T and M-H measurements. The maximum magnetic entropy change (-ΔSMmax) of CdGdB5O10 reaches 23.94 J·kg-1·K-1 at 5 T and 3 K, approaching the value reported for commercial Gd3Ga5O12 under identical conditions. Cd4GdB3O10 exhibits a -ΔSMmax of 13.96 J·kg-1·K-1 at 5 T and 2 K, comparable to Dy3Ga5O12. These two cadmium-gadolinium-borates may have potential for cryogenic magnetic cooling applications due to their high -ΔSMmax, broad entropy plateau, and stable structure. Additionally, the optical and thermal properties of CdGdB5O10 were investigated.