Abstract
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 language | English |
|---|---|
| Article number | PII S0921-4534(02)00691-3 |
| Pages (from-to) | 14-17 |
| Number of pages | 4 |
| Journal | Physica C: Superconductivity and its Applications |
| Volume | 372 |
| Publication status | Published - 1 Aug 2002 |
| Event | 5th European Conference on Applied Superconductivity (EUCAS 2001) - LYNGBY, Denmark Duration: 26 Aug 2001 → 30 Aug 2001 |
Keywords
- superconducting junctions
- voltage standards
- magnesium diboride
- MGB2