CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Fabrication and magnetic properties of 4SC(NH2)2-Ni0.97Cu0.03Cl2 single crystals |
Chen Li-Min (陈丽敏)a, Guo Ying (郭颖)b, Liu Xu-Guang (刘旭光)c, Xie Qi-Yun (解其云)a, Tao Zhi-Kuo (陶志阔)a, Chen Jing (谌静)a, Zhou Ling-Ling (周玲玲)a, Liu Chun-Sheng (刘春生)a |
a Key Laboratory of Radio Frequency and Micro-Nano Electronics of Jiangsu Province, Nanjing 210023, China; b Jiangsu Key Laboratory of Big Data Analysis Technology; Jiangsu Collaborative Innovation Center on Atmospheric Environment and Equipment Technology, Nanjing 210044, China; c Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei 230026, China |
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Abstract Single crystals of 4SC(NH2)2-Ni1-xCuxCl2 (x=0.03) (Cu-DTN) containing spin S=1/2 Cu2+ and S=1 Ni2+ cations are synthesized by slow evaporation methods. Structural characterization demonstrates that the Cu-DTN is of a tetrahedral structure with lattice parameter c being 9.0995 Å, which is 1.32% expansion compared with that of parent material DTN due to the larger radius of the Cu ion. Direct current (DC) susceptibility measurements show that both the antiferromagnetic exchange interaction at low temperature and the large anisotropy of susceptibilities are suppressed after doping the Cu ion, which could be related to the structural distortion and the increase of the super-exchange paths in Cu-DTN.
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Received: 05 June 2015
Revised: 21 August 2015
Accepted manuscript online:
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PACS:
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75.30.Hx
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(Magnetic impurity interactions)
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75.30.Cr
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(Saturation moments and magnetic susceptibilities)
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75.30.Gw
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(Magnetic anisotropy)
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Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11404316 and 11304159), the Natural Science Foundation of Jiangsu Province, China, and the Science Foundation of Nanjing University of Posts and Telecommunications, China (Grant Nos. BK20140863 and NY213075). |
Corresponding Authors:
Liu Chun-Sheng
E-mail: csliu@njupt.edu.cn
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Cite this article:
Chen Li-Min (陈丽敏), Guo Ying (郭颖), Liu Xu-Guang (刘旭光), Xie Qi-Yun (解其云), Tao Zhi-Kuo (陶志阔), Chen Jing (谌静), Zhou Ling-Ling (周玲玲), Liu Chun-Sheng (刘春生) Fabrication and magnetic properties of 4SC(NH2)2-Ni0.97Cu0.03Cl2 single crystals 2015 Chin. Phys. B 24 127503
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