Observation of microwave synchronization of thin film microbridge arrays
A report is given on the characteristics of thin film microbridge Josephson junctions fabricated using electron beam lithography, and the techniques used to fabricate these junctions, which are typically 0.3$mu$ square, are discussed. Extensive measurements were made on both individual junctions of tin and indium and on small arrays of these junctions. Synchronization of current biased series arrays by an applied microwave field was achieved. This synchronization appears as a zero differential resistance across the entire array at a voltage of MV/sub J/, where M is the number of elements in series and V/sub J/ is the Josephson voltage h$nu$/2e. A systematic variation with microbridge dimension of the microwave enhancement of the critical current was observed. (auth)
- Research Organization:
- State Univ. of New York, Stony Brook
- NSA Number:
- NSA-33-017075
- OSTI ID:
- 4094672
- Journal Information:
- IEEE Trans. Magn., v. MAG-11, no. 2, pp. 671-673, Journal Name: IEEE Trans. Magn., v. MAG-11, no. 2, pp. 671-673; ISSN IEMGA
- Country of Publication:
- United States
- Language:
- English
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*JOSEPHSON JUNCTIONS-- PROXIMITY EFFECT
420201* --Engineering--Facilities & Equipment--Cryogenic & Superconducting Equipment & Devices
CRITICAL CURRENT
ELECTRON BEAMS
FABRICATION
FILMS
INDIUM
MICROWAVE RADIATION
N42220* --Engineering--Facilities & Equipment--Cryogenic & Superconducting Equipment & Devices
TESTING
TIN