摘要
Group IV element Pb has been selected as the dopant to dope at the Sr site of Sr_(2)IrO_(4). It is exciting to find that the single-phase crystal structure could be maintained with a high Pb doping level of up to x=0.3 in Sr_(2-x)Pb_(x)IrO_(4). The mapping data obtained from energy-dispersive x-ray spectroscopy analyses give solid evidence that the Pb ions are uniformly distributed in the Sr_(2)IrO_(4) matrix. The incorporation of Pb leads to a moderate depression of the canted antiferromagnetic ordering state. The electrical conductivity could be greatly enhanced when the Pb doping content is higher than x=0.2.The present results give a fresh material base to explore new physics in doped Sr_(2)IrO_(4) systems.
作者
岳智来
甄伟立
牛瑞
焦珂珂
朱文卡
皮雳
张昌锦
Zhi-Lai Yue;Wei-Li Zhen;Rui Niu;Ke-Ke Jiao;Wen-Ka Zhu;Li Pi;Chang-Jin Zhang(High Magnetic Field Laboratory,Hefei Institutes of Physical Science,Chinese Academy of Sciences,Hefei 230031,China;Science Island Branch of Graduate School,University of Science and Technology of China,Hefei 230026,China;Collaborative Innovation Center of Advanced Microstructures,Nanjing University,Nanjing 210093,China)
基金
Project supported by the National Key R&D Program of China (Grant Nos.2022YFA1403203 and 2021YFA1600201)
the National Natural Science Foundation of China (Grant Nos.11974356 and 12274414)
the Joint Funds of the National Natural Science Foundation of China
the Chinese Academy of Sciences Large-Scale Scientific Facility (Grant No.U1932216)。
