Interface-enhanced superconductivity of single layer FeSe grown on non-TiO<sub>2</sub> based oxides

ORAL

Abstract

The single layer FeSe film on SrTiO3 indicates that interfaces can play a significant role in high-temperature superconductivity. Here we report a new FeSe-based interface, single layer FeSe grown on non-TiO2 based oxides by molecular beam epitaxy (MBE) method, was successfully obtained. The structure of the interface was determined by high resolution transmission electron microscopy (HRTEM). The angle-resolved photoemission spectroscopy (ARPES) shows that it is superconducting with a large gap, while the ex-situ mutual inductance measurements indicate it has a high onset temperature for diamagnetism. This heterostructure can provide a new platform for understanding the interface-enhanced superconductivity.

*The National Natural Science Foundation of China

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Presenters

  • Yuan-He Song

    • State Key Laboratory of Surface Physics, Department of Physics, and Advanced Materials Laboratory, Fudan Univ

Authors

  • Yuan-He Song

    • State Key Laboratory of Surface Physics, Department of Physics, and Advanced Materials Laboratory, Fudan Univ

  • Xia Lou

    • Fudan University
    • State Key Laboratory of Surface Physics, Department of Physics, and Advanced Materials Laboratory, Fudan Univ

  • Xiaoyang Chen

    • State Key Laboratory of Surface Physics, Department of Physics, and Advanced Materials Laboratory, Fudan Univ

  • Qinghua Zhang

    • Institute of Physics, Chinese Academy of Sciences

  • Lin Gu

    • Institute of Physics, Chinese Academy of Sciences

  • Zheng Chen

    • Department of Physics, Zhejiang Univ

  • Yan-Wu Xie

    • Department of Applied Physics, Stanford University
    • Department of Physics, Zhejiang Univ

  • Xiaofeng Xu

    • Institute of Physics, Chinese Academy of Sciences

  • Xuetao Zhu

    • Institute of Physics, Chinese Academy of Sciences

  • Jiandong Guo

    • Institute of Physics, Chinese Academy of Sciences

  • Ran Tao

    • Fudan Univ
    • State Key Laboratory of Surface Physics, Department of Physics, and Advanced Materials Laboratory, Fudan Univ

  • Tianlun Yu

    • Fudan University
    • Paul Scherrer Institut
    • State Key Laboratory of Surface Physics, Department of Physics, and Advanced Materials Laboratory, Fudan Univ

  • Hao Ru

    • State Key Laboratory of Surface Physics, Department of Physics, and Advanced Materials Laboratory, Fudan Univ

  • Yi-Hua Wang

    • State Key Laboratory of Surface Physics, Department of Physics, and Advanced Materials Laboratory, Fudan Univ

  • Haichao Xu

    • Fudan Univ
    • Fudan University
    • State Key Laboratory of Surface Physics, Department of Physics, and Advanced Materials Laboratory, Fudan Univ

  • Rui Peng

    • Fudan Univ
    • Advanced Materials Laboratory, Fudan University
    • Fudan University
    • State Key Laboratory of Surface Physics, Department of Physics, and Advanced Materials Laboratory, Fudan Univ

  • Donglai Feng

    • Fudan Univ
    • Fudan University
    • State Key Laboratory of Surface Physics, Department of Physics, and Advanced Materials Laboratory, Fudan Univ