Ferromagnet/Superconductor/Ferromagnet (F/S/F) trilayers constitute the core of a superconducting spin valve. The switching effect of the spin valve is based on interference phenomena occurring due to the proximity effect at the S/F interfaces. A remarkable effect is only expected if the core structure exhibits strong critical temperature oscillations, or most favorable, reentrant superconductivity, when the thickness of the ferromagnetic layer is increased. The core structure has to be grown on an antiferromagnetic oxide layer (or such layer to be placed on top) to pin by exchange bias the magnetization-orientation of one of the ferromagnetic layers. In the present paper, we demonstrate that this is possible, keeping the superconducting behavior of the core structure undisturbed.
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21 July 2013
Research Article|
July 16 2013
Reentrant superconductivity and superconducting critical temperature oscillations in F/S/F trilayers of Cu41Ni59/Nb/Cu41Ni59 grown on cobalt oxide
V. I. Zdravkov;
V. I. Zdravkov
1
Institut für Physik, Universität Augsburg
, D-86159 Augsburg, Germany
2
D. Ghitsu Institute of Electronic Engineering and Nanotechnologies ASM
, MD2028 Kishinev, Moldova
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J. Kehrle;
J. Kehrle
1
Institut für Physik, Universität Augsburg
, D-86159 Augsburg, Germany
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D. Lenk;
D. Lenk
1
Institut für Physik, Universität Augsburg
, D-86159 Augsburg, Germany
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G. Obermeier;
G. Obermeier
1
Institut für Physik, Universität Augsburg
, D-86159 Augsburg, Germany
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A. Ullrich;
A. Ullrich
1
Institut für Physik, Universität Augsburg
, D-86159 Augsburg, Germany
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C. Müller;
C. Müller
1
Institut für Physik, Universität Augsburg
, D-86159 Augsburg, Germany
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H. A. Krug von Nidda;
H. A. Krug von Nidda
1
Institut für Physik, Universität Augsburg
, D-86159 Augsburg, Germany
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R. Morari;
R. Morari
2
D. Ghitsu Institute of Electronic Engineering and Nanotechnologies ASM
, MD2028 Kishinev, Moldova
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A. S. Sidorenko;
A. S. Sidorenko
2
D. Ghitsu Institute of Electronic Engineering and Nanotechnologies ASM
, MD2028 Kishinev, Moldova
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L. R. Tagirov;
L. R. Tagirov
1
Institut für Physik, Universität Augsburg
, D-86159 Augsburg, Germany
3
Solid State Physics Department, Kazan Federal University
, 420008 Kazan, Russia
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S. Horn;
S. Horn
1
Institut für Physik, Universität Augsburg
, D-86159 Augsburg, Germany
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R. Tidecks
R. Tidecks
1
Institut für Physik, Universität Augsburg
, D-86159 Augsburg, Germany
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J. Appl. Phys. 114, 033903 (2013)
Article history
Received:
March 28 2013
Accepted:
June 19 2013
Citation
V. I. Zdravkov, J. Kehrle, D. Lenk, G. Obermeier, A. Ullrich, C. Müller, H. A. Krug von Nidda, R. Morari, A. S. Sidorenko, L. R. Tagirov, S. Horn, R. Tidecks; Reentrant superconductivity and superconducting critical temperature oscillations in F/S/F trilayers of Cu41Ni59/Nb/Cu41Ni59 grown on cobalt oxide. J. Appl. Phys. 21 July 2013; 114 (3): 033903. https://doi.org/10.1063/1.4813131
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