Pulsed laser growth and superfluid density measurement of underdoped Bi2Sr2CaCu2O8+x films

ORAL

Abstract

Underdoped Bi2Sr2CaCu2O8+x thins films are made by pulsed laser deposition on MgO and LaAlO3 substrates. By reducing oxygen deposition pressure and postannealing, Tc as low as 6K is achieved. Superfluid density of these films is measured by mutual inductance of a two coil apparatus. Tc is much higher than the one given by 2D Kosterlitz-Thouless-Berezinskii transition temperature calculated for individual CuO2 bilayers. Scaling of Tc with superfluid density will be compared with our previous 2D and 3D YBCO films.

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Authors

  • Jie Yong

    • Department of physics, the Ohio State University

  • A. Kanigel

    • Technion-Israel Institute of Technology
    • Department of Physics, Technion - Israel Institute of Technology, Haifa 32000, Israel
    • Technion - Israel Institute of Technology.

  • Song Wang

    • Department of physics, the Ohio State University

  • Li-Wei Hung

    • Department of physics, the Ohio State University

  • Thomas Lemberger

    • The Ohio State University
    • Department of physics, the Ohio State University
    • Ohio State University