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Superconductor-Insulator Transition in a Disordered Electronic System

Nandini Trivedi·Richard T. Scalettar·Mohit Randeria
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Abstract

We study an electronic model of a 2D superconductor with onsite randomness using Quantum Monte Carlo simulations. The superfluid density is used to track the destruction of superconductivity in the ground state with increasing disorder. The non-superconducting state is identified as an insulator from the temperature dependence of its d.c. resistivity. The value of $σ_{\rm dc}$ at the superconductor-insulator transition appears to be non-universal.

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Nandini Trivedi, Richard T. Scalettar, Mohit Randeria. 1995-09-07. Superconductor-Insulator Transition in a Disordered Electronic System. https://doi.org/10.1103/physrevb.54.r3756

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