| Issue |
Europhys. Lett.
Volume 41, Number 3, february I 1998
|
|
|---|---|---|
| Page(s) | 333 - 338 | |
| Section | Condensed matter: electronic structure, electrical, magnetic and optical properties | |
| DOI | https://doi.org/10.1209/epl/i1998-00152-9 | |
| Published online | 01 September 2002 | |
Supermatching vortex phases in superconducting thin films with antidot lattices
1
University of Kentucky, Lexington, KY 40506, USA
2
Laboratorium voor Vaste-Stoffysica en Magnetisme, Katholieke
Universiteit Leuven, B-3001 Leuven, Belgium
Received:
4
August
1997
Accepted:
4
December
1997
We report AC magnetic susceptibility χ and magnetic relaxation
measurements on a superconducting 
(
) film with an antidot lattice. We find new
interstitial vortex phases stablized by collective flux line interactions in a
supermatching regime extending well above the saturation field defined by
maximal filling of the antidot lattice by flux.
Observations of a nonmonotonic field dependence of matching anomalies in
χ and a critical depinning angle in relaxation behavior reveal the
existence of flux line lattice phases of relatively low stability at certain
matching fields.
PACS: 74.60.Ge – Flux pinning, flux creep, and flux-line lattice dynamics / 74.25.Ha – Magnetic properties / 74.76.Db – Other superconducting films
© EDP Sciences, 1998
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