Design of Josephson Junctions for X-Ray Detection with Small Quasiparticle Loss at the Edges

  • J. G. Gijsbertsen
  • E. P. Houwman
  • J. Flokstra
  • H. Rogalla
Part of the An International Cryogenic Materials Conference Publication book series (ACRE, volume 40)

Abstract

Using Nb/Al technology, we are developing Josephson junctions for high-resolution X-ray spectroscopy. Quasiparticle loss due to trapping in the anodized edges of the present junctions degrades the X-ray energy resolution. We present the design and fabrication process of a new junction geometry that aims to minimize this kind of quasiparticle loss. The I-V characteristics of the new junctions indicate good junction quality.

Keywords

Tunnel Junction Base Electrode Superconducting Tunnel Junction Barrier Area Junction Edge 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1994

Authors and Affiliations

  • J. G. Gijsbertsen
    • 1
  • E. P. Houwman
    • 1
  • J. Flokstra
    • 1
  • H. Rogalla
    • 1
  1. 1.Department of Applied PhysicsUniversity of TwenteEnschedeThe Netherlands

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