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Method of fabrication of Josephson tunnel junction

Patent ·
OSTI ID:5180835

There is disclosed a method of fabrication of a Josephson tunnel junction device. A surface of a base electrode of Nb or Nb compound is subjected to sputter cleaning and then to plasma oxidation in an atmosphere of a diluent gas and oxygen to form thereon an oxide layer serving as a tunnel barrier. A counter electrode is then formed on the oxide layer to provide the Josephson tunnel junction.

Assignee:
Nippon Telegraph and Telephone Public Corp. (Japan)
Patent Number(s):
US 4412902
OSTI ID:
5180835
Country of Publication:
United States
Language:
English