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Title: Original photo of oscilloscope traces (double exposure)
Description: 1995--In an advance toward programmable standards, NIST demonstrated the first quantized voltage steps in an array of Josephson junctions with barriers made of normal metal instead of an insulator. The circuit contains 400 junctions, 1.7 micrometers by 1.7 micrometers in size, made of niobium electrodes and gold-palladium alloy barriers.

*PML, oscilloscope, volt, superconductor, niobium

See also http://www.nist.gov/pml/history-volt/superconductivity_1990s.cfm.
Subjects (names):
Topics/Categories: Electronics--Superconductors
Type: Photo/B&W
Source: National Institute of Standards and Technology
Credit Line as it should
appear in print:
Benz/NIST
AV Number: 11PML026
Date Created: 1995
Date Entered: 3/30/2011

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