| Issue |
Europhys. Lett.
Volume 63, Number 6, September 2003
|
|
|---|---|---|
| Page(s) | 881 - 887 | |
| Section | Condensed matter: electronic structure, electrical, magnetic, and optical properties | |
| DOI | https://doi.org/10.1209/epl/i2003-00603-9 | |
| Published online | 01 November 2003 | |
Hysteretic behavior of critical currents in heterostructures of high-temperature superconductors and ferromagnets
Max-Planck-Institut für Festkörperforschung - Heisenbergstr. 1 D-70569 Stuttgart, Germany
Received:
8
May
2003
Accepted:
7
July
2003
We have grown bilayer structures of the ferromagnet
and the high-temperature superconductor
on single crystalline
substrates by pulsed laser deposition. By means
of quantitative magneto-optics, the critical current density in
the superconducting film is measured and it is found that it
strongly depends on the magnetization state of the ferromagnetic
layer. The critical current density shows a hysteretic behavior
that is strongly related to the magnetic hysteresis loop of the
ferromagnet.
PACS: 74.78.Fk – Multilayers, superlattices, heterostructures / 74.25.Qt – Vortex lattices, flux pinning, flux creep / 74.72.Bk – 
-based cuprates
© EDP Sciences, 2003
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