SrNi(VO4)(OH): The High-Temperature Hydrothermal Synthesis and Magnetic Properties of an Adelite-Descloizite-Type Structure
SrNi(VO4)(OH): The High-Temperature Hydrothermal Synthesis and Magnetic Properties of an Adelite-Descloizite-Type Structure
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DOI：
10.3390/cryst12101360
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发表时间：
2022-09
期刊：
影响因子：
2.7
通讯作者：
L. Sanjeewa;Tiffany M. Smith Pellizzeri;C. McMillen;K. Taddei;T. Heitmann;H. Kaiser;J. Kolis
中科院分区：
文献类型：
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作者：
L. Sanjeewa;Tiffany M. Smith Pellizzeri;C. McMillen;K. Taddei;T. Heitmann;H. Kaiser;J. Kolis
采用高温(580℃)高压水热法合成了一种新型过渡金属脱辉橄榄岩结构的单晶。用单晶X射线衍射仪和能量色散X射线能谱仪(EDX)对其结构和元素组成进行了分析。SrNi(VO4)(OH)属偏心正交晶系，空间群为P212121(NO.19)；Z=4，a=5.9952(4)？，b=7.5844(4)？，c=9.2240(5)？该结构由Ni-O-V骨架组成，其中Sr2+离子驻留在通道内。单晶磁测量在温度和场相关的数据中都显示出明显的各向异性。在TN~8K范围内，随温度变化的磁测量显示出反铁磁行为，总体来说，磁性质表明SrNi(VO4)(OH)存在竞争反铁磁和铁磁相互作用。
Single crystals of a new transition metal adelite-descloizite-type structure were synthesized using a high temperature (580 °C) high-pressure hydrothermal technique. Single crystal X-ray diffraction and energy dispersive X-ray analysis (EDX) were used to investigate the structure and elemental composition, respectively. SrNi(VO4)(OH) crystallizes in an acentric orthorhombic crystal system in the space group P212121 (no. 19); Z = 4, a = 5.9952(4) Å, b = 7.5844(4) Å, c = 9.2240(5) Å. The structure is comprised of a Ni–O–V framework where Sr2+ ions reside inside the channels. Single-crystal magnetic measurements display a significant anisotropy in both temperature- and field-dependent data. The temperature dependent magnetic measurement shows antiferromagnetic behavior at TN~8 K. Overall, the magnetic properties indicate the presence of competing antiferromagnetic and ferromagnetic interactions of SrNi(VO4)(OH).