Measurements on Two-Dimensional Arrays of Mesoscopic Josephson Junctions

Abstract

We report measurements on two-dimensional arrays of Josephson junctions with junction sizes down to 60 nm by 60nm. Due to their small size, these junctions belong to the class of mesoscopic systems: they show behavior which reveals the underlying quantum mechanical properties. Two energies characterize the junctions, the Josephson energy E (sub j) and the charging energy E (sub c). Arrays in which E (sub j) >> E (sub c) are superconducting around zero bias and at zero temperature, while arrays in which E (sub c) >> E (sub j), called charging arrays, are instead insulating. This is the basis of the superconductor-to-insulator (S-I) transition (Author)

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1993
Accession Number
ADA265129

Entities

People

  • Thomas S. Tighe

Organizations

  • Harvard University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Alkenes
  • Copper
  • Electric Fields
  • Electromagnetic Radiation
  • Electron Beam Lithography
  • Electron Beams
  • Energy Gaps
  • Energy Levels
  • Fermi Levels
  • Low Temperature
  • Magnetic Fields
  • Measurement
  • Phase Diagrams
  • Quantum Tunneling
  • Quasiparticles
  • Transition Temperature
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Phased Array Antenna Design.
  • Superconducting Magnet Technology
  • Theoretical Analysis.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene
  • Quantum Computing