| Issue |
Europhys. Lett.
Volume 58, Number 4, May 2002
|
|
|---|---|---|
| Page(s) | 596 - 602 | |
| Section | Condensed matter: electronic structure, electrical, magnetic, and optical properties | |
| DOI | https://doi.org/10.1209/epl/i2002-00437-y | |
| Published online | 01 May 2002 | |
Nonuniform superconducting phases in a layered ferromagnetic superconductor
1
Université Bordeaux 1, CPMOH UMR-CNRS 5798 - F-33405 Talence Cedex, France
2
CEA Grenoble, DRFMC/SPSMS/LCP - F-38054 Grenoble Cedex 9, France
Received:
5
November
2001
Accepted:
28
February
2002
We determine the phase diagram of the ferromagnetic (F)/superconducting (S)
atomic superlattice with arbitrary coupling between the layers. The exchange
field acting on F layers may induce different kinds of modulated
superconducting phases with either in-plane modulation or a phase shift
between adjacent S layers. When the exchange field is increased, the
re-entrance of the superconductivity emerges and the “
phase” where
the superconducting order parameter changes its sign in successive S layers
is realized.
PACS: 74.80.Dm – Superconducting layer structures: superlattices, heterojunctions, and multilayers / 74.70.Pq – Ruthenates
© EDP Sciences, 2002
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