Journal of Superconductivity

, Volume 7, Issue 1, pp 187–195

Atomic-layer engineering of cuprate superconductors

  • I. Bozovic
  • J. N. Eckstein
  • G. F. Virshup
  • A. Chaiken
  • M. Wall
  • R. Howell
  • M. Fluss
VI. Superlattices

DOI: 10.1007/BF00730392

Cite this article as:
Bozovic, I., Eckstein, J.N., Virshup, G.F. et al. J Supercond (1994) 7: 187. doi:10.1007/BF00730392

Abstract

A technique for atomic layer-by-layer synthesis of cuprate superconductors and other complex oxides has been developed. Thin films with excellent transport properties and atomically flat surfaces and interfaces are obtained. The samples are engineered by stacking molecular layers of different compounds to assemble multilayers and superlattices, by adding or omitting atomic monolayers to create novel compounds, and by doping within specified atomic monolayers to fabricate, for the first time, intra-cell barriers. Apart from manufacturing trilayer Josephson junctions withIcRn>5 mV, this technique enables one to customize both the materials and the devices according to the needs of a specific experiment. A number of fundamental issues, such as the dimensionality of the HTSC state, existence of long-range proximity effects, occurrence of resonant tunneling with a specified number of hops, etc., have been addressed in this way. Synthesis of the first “artificial” metastable HTSC compounds is also reported.

Key words

Thin films BiSrCaCuO atomic-layer growth trilayer Josephson junctions 

Copyright information

© Plenum Publishing Corporation 1994

Authors and Affiliations

  • I. Bozovic
    • 1
  • J. N. Eckstein
    • 1
  • G. F. Virshup
    • 1
  • A. Chaiken
    • 2
  • M. Wall
    • 2
  • R. Howell
    • 2
  • M. Fluss
    • 2
  1. 1.E. L. Ginzton Research CenterVarian Associates, Inc.Palo Alto
  2. 2.Lawrence Livermore National LaboratoriesLivermore

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