Growth,structure and physical properties of gadolinium doped Sr2IrO4 single crystal |
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| Authors: | Song-Tao Dong Bin-Bin Zhang Lunyong Zhang YB Chen Jian Zhou Shan-Tao Zhang Zheng-Bin Gu SH Yao Yan-Feng Chen |
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| Institution: | 1. National Laboratory of Solid State Microstructure and Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, China;2. National Laboratory of Solid State Microstructure and Department of Physics, Nanjing University, Nanjing 210093, China;3. Institute of Material Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China |
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| Abstract: | A series of Gd-doped Sr2IrO4 single crystals were grown using a flux method. Analysis of the temperature-dependent resistance of these crystals reveals that these samples show two-dimensional weak localization at 150 to 300 K, while three-dimensional variable range hopping (VRH) behavior is observed at temperatures lower than 150 K. Two localization lengths are observed in the VRH behavior, with a transition temperature of around 88 K. Correspondingly, temperature-dependent magnetization observations along the ab-plane reveal magnetic anomalies at both 150 and 85 K. This work demonstrates the correlation between the electrical and magnetic properties of 5d transition-metal compounds. |
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| Keywords: | Iridates Crystal growth Electrical property Magnetic property |
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