Nanoscale superconductor-normal metal-superconductor junctions fabricated by focused ion beam

G Burnell*, RH Hadfield, C Bell, DJ Kang, MG Blamire, Chris Bell

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

5 Citations (Scopus)


We have developed a reliable and versatile technique for fabricating low T-C superconductor-normal metal-superconductor Josephson junctions with a focused ion beam (FIB) microscope in conjunction with an in situ resistance measurement technique. This provides a simple method that allow us to create a variety of single and multi-junction superconducting devices (arrays, SQUIDs and 3 terminal devices) with desirable and well-controlled properties and high integration densities. Here we discuss the development of this technique, demonstrating the versatility of the FIB in this application with recent results from arrays intended for voltage standards, devices with novel circular junction geometry, and devices fabricated in MgB2. (C) 2002 Elsevier Science B.V. All rights reserved.

Original languageEnglish
Article numberPII S0921-4534(02)00691-3
Pages (from-to)14-17
Number of pages4
JournalPhysica C: Superconductivity and its Applications
Publication statusPublished - 1 Aug 2002
Event5th European Conference on Applied Superconductivity (EUCAS 2001) - LYNGBY, Denmark
Duration: 26 Aug 200130 Aug 2001


  • superconducting junctions
  • voltage standards
  • magnesium diboride
  • MGB2


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