Evolution of Slow Magnetic Relaxation: from Diamagnetic Matrix Y(OH)CO3 to Dy(0.06)Y(0.94)(OH)CO3 with High Spin-Reversal Barrier and Blocking Temperature.

作者信息

Liu Jiang, Chen Yan-Cong, Lai Jia-Jun, Wu Zi-Hao, Wang Long-Fei, Li Quan-Wen, Huang Guo-Zhang, Jia Jian-Hua, Tong Ming-Liang

机构信息

Key Lab of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry & Chemical Engineering, Sun Yat-Sen University , Guangzhou 510275, P. R. China.

出版信息

Inorg Chem. 2016 Mar 21;55(6):3145-50. doi: 10.1021/acs.inorgchem.6b00087. Epub 2016 Mar 9.

A stable Dy(III)-dispersed compound with single-molecule magnet behavior, Dy(0.06)Y(0.94)(OH)CO3, was isolated by a general strategy targeted at the doping of paramagnetic Dy(3+) 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.