Evolution of Slow Magnetic Relaxation: from Diamagnetic Matrix Y(OH)CO3 to Dy0.06Y0.94(OH)CO3 with High Spin-Reversal Barrier and Blocking Temperature

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• 作者：Jiang Liu ; Yan-Cong Chen ; Jia-Jun Lai ; Zi-Hao Wu ; Long-Fei Wang ; Quan-Wen Li ; Guo-Zhang Huang ; Jian-Hua Jia ; Ming-Liang Tong
• 刊名：Inorganic Chemistry
• 出版年：2016
• 出版时间：March 21, 2016
• 年：2016
• 卷：55
• 期：6
• 页码：3145-3150
• 全文大小：436K
• ISSN：1520-510X

文摘

A stable Dy^III-dispersed compound with single-molecule magnet behavior, Dy_0.06Y_0.94(OH)CO₃, was isolated by a general strategy targeted at the doping of paramagnetic Dy³⁺ into a diamagnetic 3D inorganic network of Y(OH)CO₃. The single-ion origin of slow magnetic relaxation was gradually released as variations of the dysprosium/yttrium ratio and finally gave a relatively large spin-reversal barrier around 200 K and high hysteresis temperature of 8 K. This study opens up new opportunities to investigate the slow magnetic relaxation and magnetostructural correlation by choosing a suitable inorganic architecture with strong axial anisotropy.