Syntheses, Structure, and 2/5 Magnetization Plateau of a 2D Layered Fluorophosphate Na3Cu5(PO4)(4)F center dot 4H(2)O
Syntheses, Structure, and 2/5 Magnetization Plateau of a 2D Layered Fluorophosphate Na3Cu5(PO4)(4)F center dot 4H(2)O
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二维层状氟磷酸盐 Na3Cu5(PO4)(4)F 中心点 4H(2)O 的合成、结构和 2/5 磁化平台
DOI：
10.1021/acs.inorgchem.7b03159
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发表时间：
2018
影响因子：
4.6
通讯作者：
He Zhangzhen
中科院分区：
文献类型：
--
作者：
Yue Xiaoyu;Ouyang Zhongwen;Cui Meiyan;Yin Lei;Xiao Guiling;Wang Zhenxing;Liu Juan;Wang Junfeng;Xia Zhengcai;Huang Xiaoying;He Zhangzhen
采用水热法合成了一种新的二维含Cu 5原子簇的氟磷酸盐化合物Na 3Cu 5（PO 4）4F·4 H2O。该化合物属于正交晶系，空间群为Pnma，二维层状结构由Cu 4 O 12 F簇合物和剩余的帽状Cu 2+离子组成的帽状{Cu 5（PO 4）4F}构筑单元构成。磁化率在T2 = 19.2 K时表现出一个宽的最大值，这是由于低维特征，随后在T1 = 11.5 K时出现了长程反铁磁有序，这一点得到了比热数据的进一步证实。高场磁化强度测量表明，在40 T以上的2/5量子磁化平台。ESR数据表明存在磁各向异性，根据系统的二维结构。
A new two-dimensional (2D) fluorophosphate compound Na3Cu5(PO4)4F·4H2O with a Cu5cluster has been synthesized using a conventional hydrothermal method. The compound crystallizes in the orthorhombic crystal system with space groupPnma.The 2D layered structure is formed by cap-like {Cu5(PO4)4F} building units consisting of a Cu4O12F cluster plus a residual cap Cu2+ion. Magnetic susceptibility exhibits a broad maximum atT2= 19.2 K due to low-dimensional character followed by a long-range antiferromagnetic ordering atT1= 11.5 K, which is further confirmed by the specific heat data. High-field magnetization measurement demonstrates a 2/5 quantum magnetization plateau above 40 T. The ESR data indicate the presence of magnetic anisotropy, in accordance with the 2D structure of the system.