Electronic Resource
Woodbury, NY
:
American Institute of Physics (AIP)
Applied Physics Letters
57 (1990), S. 2603-2605
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
We have developed a highly sensitive ac magnetic method, using a modified two-coil technique, for measuring magnetic shielding effectiveness (S) of high-temperature superconductors in planar form. Incorporated in the measurement was a pair of iron E pieces, which significantly reduce flux leakage around the sample edge. Below a threshold field, the S values measured at 77 K for bulk superconducting YBa2Cu3O7−x compounds were typically 110 dB. This method is particularly useful for determining threshold field and observing trapped-flux behaviors in high-temperature superconductors.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.104187
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