Absence of magnetic order in dichloro [1,2-bis (diphenylphosphino) ethane] nickel2 + single crystal
Shuaiqi Ma(马帅奇)1,3, Linlin An(安琳琳)2,3, and Xiangde Zhu(朱相德)3,†
1 Institute of Physical Science and Information Technology, Anhui University, Hefei 230601, China; 2 School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei 230009, China; 3 Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, China
Abstract Dichloro [1,2-bis (diphenylphosphino) ethane] nickel2+ (NiCl2(dppe)) is an organic compound containing C26H24P2(dppe) molecules and Cl-, Ni2+ ions. The large-size NiCl2(dppe) single crystals with longest dimension of 4 mm were grown by the method of slow evaporation of organic solution. Single crystal x-ray diffraction spectrum indicates that the single crystal is of high quality. Magnetization results of the NiCl2(dppe) single crystals show an anisotropic paramagnetism behavior and diamagnetic background, which come from Ni2+ ions and benzene ring, respectively. However, according to the specific heat results with temperature down to 0.1 K and magnetic field up to 14 T, no expected field-induced quantum phase transition was observed in NiCl2(dppe) single crystals.
Fund: Project supported by the National Key Research and Development Program of China (Grant No. 2017YFA0403502), the National Natural Science Foundation of China, and Youth Innovation Promotion Association of Chinese Academy of Sciences (Grant No. 2017483). A portion of this work was supported by the High Magnetic Field Laboratory of Anhui Province, China.
Shuaiqi Ma(马帅奇), Linlin An(安琳琳), and Xiangde Zhu(朱相德) Absence of magnetic order in dichloro [1,2-bis (diphenylphosphino) ethane] nickel2 + single crystal 2021 Chin. Phys. B 30 057501
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