72 DPI Image
150 DPI Image
300 DPI Image
|
| Title: |
First chip to feature Josephson junctions with normal-metal barriers |
| Description: |
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. The photograph of oscilloscope traces shows two superimposed current-voltage curves, with and without an applied microwave signal.
See also http://www.nist.gov/pml/history-volt/superconductivity_1990s.cfm.
|
| Subjects (names): |
|
| Topics/Categories: |
Electronics--Superconductors
|
| Type: |
Photo/Color |
| Source: |
National Institute of Standards and Technology |
Credit Line as it should
appear in print: |
Benz/NIST |
| AV Number: |
11PML025 |
| Date Created: |
1995 |
| Date Entered: |
3/30/2011 |
