Title
Precision measurements of AC Josephson voltage standard operating margins
Abstract
Recent advances in circuit design and fabrication of superconducting integrated circuits have enabled us to demon- strate an ac Josephson voltage standard (ACJVS) that generates both ac and dc waveforms up to 242-mV peak voltage. Using a Fast Fourier Transform spectrum analyzer and an ac-dc transfer stan- dard, we characterize ACJVS operating margins by performing "flat-spot" measurements at the level of a part in for all eight bias parameters. By verifying that every bias parameter has a "flat-spot" (i.e., a range of bias values over which the measured ACJVS output is precisely constant), we demonstrate that all Josephson junctions on the chip are operating properly. Index Terms—AC measurements, AC voltage standard, Josephson arrays, Josephson devices.
Year
DOI
Venue
2005
10.1109/TIM.2004.843070
Instrumentation and Measurement, IEEE Transactions
Keywords
Field
DocType
Josephson effect,fast Fourier transforms,measurement standards,spectral analysers,superconducting integrated circuits,voltage measurement,AC Josephson voltage standard,AC measurements,AC waveform,AC-DC transfer standard,ACJVS operating margins,DC waveforms,Josephson arrays,Josephson devices,Josephson junctions,bias parameter,circuit design,fast Fourier transform,flat-spot measurements,precision measurements,spectrum analyzer,superconducting integrated circuits,AC measurements,AC voltage standard,Josephson arrays,Josephson devices
Josephson effect,Josephson voltage standard,Waveform,Voltage,Circuit design,Electronic engineering,Chip,Fast Fourier transform,Spectrum analyzer,Electrical engineering,Physics
Journal
Volume
Issue
ISSN
54
2
0018-9456
Citations 
PageRank 
References 
8
1.79
2
Authors
4
Name
Order
Citations
PageRank
C. J. Burroughs15821.52
Samuel P. Benz210620.78
Paul D. Dresselhaus39817.82
Yonuk Chong4174.25