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Title: High-Temp Superconductors
Description: Magneto-optical image of magnetic fields within a YBCO superconductor showing electrically connected grains (yellow) and grain boundaries (green) that form barriers to superconducting currents. The large reversible effect of strain observed by NIST might be due to associated changes in grain boundaries, which raise the barriers to current flow and lowering the material's current-carrying capability.

*PHY, High-Temp Superconductors

See also http://www.nist.gov/public_affairs/techbeat/tb2007_0215.htm#htc.
Subjects (names):
Topics/Categories: Physics--Atomic and Molecular Physics
Type: Graphic/scientific data
Source: National Institute of Standards and Technology
Credit Line as it should
appear in print:
Credit: D.C. van der Laan/NIST and J. Schwartz, NHMFL-FSU
AV Number: 07PHY008
Date Created: February 15, 2007
Date Entered: 2/15/2007

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