A 3D borate–carbonate framework, GdB(OH)₄CO₃ (1), was synthesized. Magnetic study reveals that its MCE is up to 33.5 J kg⁻¹ K⁻¹ at 2 K and 2 T, due to the introduction of a long magnetic exchange path of Gd–O–B–O–Gd leading to 1 exhibiting weak magnetic interaction.

中文翻译：

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一种在低磁场下表现出大磁热效应的 Gd 基硼酸盐 - 碳酸盐骨架

合成了3D 硼酸盐-碳酸盐骨架 GdB (OH) ₄ CO ₃ ( 1 )。磁性研究表明，其 MCE在 2 K 和 2 T 时高达 33.5 J kg ^-1 K ^-1，这是由于引入了 Gd – O – B – O – Gd 的长磁交换路径导致1表现出弱磁性相互作用。