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Published May 1, 1992 | Published
Journal Article Open

Two-dimensional superconductor-insulator transition in bulk single-crystal YBa_2Cu_3O_(6.38)

Abstract

We use a magnetic field to tune a highly anisotropic single crystal of oxygen-deficient YBa_2Cu_3O_(7-δ) with a transition temperature of 2 K through the superconductor-insulator transition. The sheet resistance scales with temperature, 0.05≤T≤1.0 K, and field, 0≤H≤94 kOe, in a manner predicted by a theory for quantum phase transitions in disordered two-dimensional superconductors.

Additional Information

© 1992 The American Physical Society. Received 21 January 1992. We are grateful to J. W. Downey and A. P. Paulikas for their help in sample preparation. The work at The University of Chicago was supported by the NSF Science and Technology Center for Superconductivity, Grant No. 88-09854. B.M.V. acknowledges support from U.S. DOE BES-Materials Sciences, Contract No. W-31-109-ENG-38.

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Published - PhysRevB.45.10162.pdf

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August 20, 2023
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