Enhanced conductivity and weakened magnetism in Pb-doped Sr2IrO4

岳智来 ¹甄伟立 ²牛瑞 ²焦珂珂 ²朱文卡 ²皮雳 ¹张昌锦³

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作者信息

1. 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
2. High Magnetic Field Laboratory,Hefei Institutes of Physical Science,Chinese Academy of Sciences,Hefei 230031,China
3. High Magnetic Field Laboratory,Hefei Institutes of Physical Science,Chinese Academy of Sciences,Hefei 230031,China;Collaborative Innovation Center of Advanced Microstructures,Nanjing University,Nanjing 210093,China
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Abstract

Group IV element Pb has been selected as the dopant to dope at the Sr site of Sr2IrO4.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 Sr2-xPbxIrO4.The map-ping data obtained from energy-dispersive x-ray spectroscopy analyses give solid evidence that the Pb ions are uniformly distributed in the Sr2IrO4 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 Sr2IrO4 systems.

Key words

iridates/doping/conductivity/magnetism

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基金项目

National Key R&D Program of China(2022YFA1403203)

National Key R&D Program of China(2021YFA1600201)

National Natural Science Foundation of China(11974356)

National Natural Science Foundation of China(12274414)

Joint Funds of the National Natural Science Foundation of China and the Chinese Academy of Sciences Large-Scale Scientific F(U1932216)

出版年

2024

中国物理B(英文版)

中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI

影响因子：0.995

ISSN：1674-1056

参考文献量38

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