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Comprehensive phase diagram of two-dimensional space charge doped Bi2Sr2CaCu2O8+x

Author

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  • Edoardo Sterpetti

    (Sorbonne Universités, Université Pierre et Marie Curie Paris 6)

  • Johan Biscaras

    (Sorbonne Universités, Université Pierre et Marie Curie Paris 6)

  • Andreas Erb

    (Bayerische Akademie der Wissenschaften)

  • Abhay Shukla

    (Sorbonne Universités, Université Pierre et Marie Curie Paris 6)

Abstract

The phase diagram of hole-doped high critical temperature superconductors as a function of doping and temperature has been intensively studied with chemical variation of doping. Chemical doping can provoke structural changes and disorder, masking intrinsic effects. Alternatively, a field-effect transistor geometry with an electrostatically doped, ultra-thin sample can be used. However, to probe the phase diagram, carrier density modulation beyond 1014 cm−2 and transport measurements performed over a large temperature range are needed. Here we use the space charge doping method to measure transport characteristics from 330 K to low temperature. We extract parameters and characteristic temperatures over a large doping range and establish a comprehensive phase diagram for one-unit-cell-thick BSCCO-2212 as a function of doping, temperature and disorder.

Suggested Citation

  • Edoardo Sterpetti & Johan Biscaras & Andreas Erb & Abhay Shukla, 2017. "Comprehensive phase diagram of two-dimensional space charge doped Bi2Sr2CaCu2O8+x," Nature Communications, Nature, vol. 8(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_s41467-017-02104-z
    DOI: 10.1038/s41467-017-02104-z
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