Giant hysteretic effect in layered organic-inorganic hybrid magnets incorporating hydroxide and cinnamate layers
Giant hysteretic effect in layered organic-inorganic hybrid magnets incorporating hydroxide and cinnamate layers
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DOI：
10.1016/j.solidstatesciences.2021.106793
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发表时间：
2022-01-01
影响因子：
3.5
通讯作者：
Hagiwara, Masayuki
中科院分区：
文献类型：
--
作者：
Honda, Zentaro;Ichimura, Kanae;Hagiwara, Masayuki
层状有机-无机杂化磁体 Co(cin)(0.8)(OH)(1.2)（cin = 肉桂酸盐）(1) 和 Cu(cin) (OH) (2) 是通过使用过渡金属硝酸盐作为无机前体和 cin 作为有机前体的低能工艺合成的。反应产物的X射线衍射图和TEM图像表明它们具有有机-无机层状结构，其中过渡金属氢氧化物无机单层与双肉桂酸酯有机层沿堆叠方向交替。化合物 1 表现出亚铁磁长程有序 (T-C = 47.5 K) 和大磁滞，矫顽场 H-c = 38 kOe。相比之下，化合物2在低温下表现出软铁磁特性，并且在T-C = 15 K时发生铁磁相变。
Layered organic-inorganic hybrid magnets, Co(cin)(0.8)(OH)(1.2) (cin = cinnamate) (1) and Cu(cin) (OH) (2), have been synthesized by using a low energy process that employs transition metal nitrates as inorganic precursors and a cin as an organic precursor. The X-ray diffraction patterns and TEM images for the reaction products suggest that they possess organic-inorganic layered structure, where a transition metal hydroxide inorganic monolayer alternates with double cinnamate organic layers along the stacking direction. The compound 1 exhibits a ferrimagnetic long-range ordering (T-C = 47.5 K) and large hysteresis with the coercive field H-c = 38 kOe. In contrast, the compound 2 shows soft ferromagnetic properties at low temperatures and a ferromagnetic phase transition occurs at T-C = 15 K.