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

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.

SUBMITTER: Sterpetti E

PROVIDER: S-EPMC5727194 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature

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

Sterpetti Edoardo E Biscaras Johan J Erb Andreas A Shukla Abhay A Shukla Abhay A

Nature communications 20171212 1

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 mea ...[more]

PMID: 29233988

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