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Decreased Energy Gap and Enhanced Conductivity in Zn-Doped Sr2IrO4

  • Yongjian Wang
  • Liming Yao
  • Jianming Yao
  • Wenka Zhu
  • Changjin Zhang
Original Paper
  • 77 Downloads

Abstract

The 5d transition metal oxide Sr2IrO4 has attracted much interest in the high-temperature superconductivity community since it highly resembles the cuprate superconductor in crystal and electronic structures. Here, we report on the transport and magnetic properties of Zn-doped Sr2IrO4. It is found that the energy gap of Sr2IrO4 is rapidly decreased with a small amount of Zn doping. Consequently, the electrical conductivity is significantly enhanced. The present work could serve as the prerequisite stage in exploring the possible superconductivity of the Sr2IrO4 compound.

Keywords

Sr2IrO4 Energy gap Magnetic moment 

Notes

Acknowledgements

This work was supported by the National Key R&D Program of China (Grant Nos. 2017YFA0403600 and 2016YFA0300404) and the National Natural Science Foundation of China (Grant Nos. 51603207, U1532267, and 11674327).

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • Yongjian Wang
    • 1
  • Liming Yao
    • 2
    • 3
  • Jianming Yao
    • 2
  • Wenka Zhu
    • 1
  • Changjin Zhang
    • 1
    • 4
  1. 1.Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field LaboratoryChinese Academy of SciencesHefeiChina
  2. 2.Hefei Institutes of Physical ScienceChinese Academy of SciencesHefeiChina
  3. 3.University of Chinese Academy of SciencesBeijingChina
  4. 4.Institute of Physical Science and Information TechnologyAnhui UniversityHefeiChina

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