Abstract
Superconducting film with a square lattice of artificial pinning centers (APC) was analyzed. It was found that at low dc currents, the differential resistance of the film showed the standard matching field anomaly. At higher dc currents, the differential resistance at each matching field was found to turn to a local maximum. The results show that this effect might indicate that the flux lines in the APC system change their flow mode as the dc current is increased.
Original language | English (US) |
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Pages (from-to) | 5371-5373 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 84 |
Issue number | 26 |
DOIs | |
State | Published - Jun 28 2004 |
Funding
This work is supported by the NSF under Grant No. DMR-0201530.
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)