Double proximity effect in hybrid planar superconductor-normal metal/ferromagnet-superconductor structures
T. E. Golikova
1
,
F. Hübler
2
,
D. BECKMANN
2
,
I.E. Batov
1
,
T. Yu. Karminskaya
3
,
M Yu Kupriyanov
3
,
A. A. Golubov
4
,
V. V. Ryazanov
1, 5
,
V V Ryazanov
1, 5
3
Publication type: Journal Article
Publication date: 2012-08-13
scimago Q1
wos Q2
SJR: 1.303
CiteScore: 6.2
Impact factor: 3.7
ISSN: 24699950, 24699969, 10980121, 1550235X
Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Abstract
We have investigated the differential resistance of hybrid planar Al-(Cu/Fe)-Al submicron bridges at low temperatures and in weak magnetic fields. The structure consists of a Cu/Fe bilayer forming a bridge between two superconducting Al electrodes. In the superconducting state of Al electrodes, we have observed a double-peak peculiarity in differential resistance of the S-(N/F)-S structures at a bias voltage corresponding to the minigap. We claim that this effect (the splitting of the minigap) is due to an electron spin polarization in the normal metal which is induced by the ferromagnet. We have demonstrated that the double-peak peculiarity is converted to a single peak at a coercive applied field corresponding to zero magnetization of the Fe layer
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Golikova T. E. et al. Double proximity effect in hybrid planar superconductor-normal metal/ferromagnet-superconductor structures // Physical Review B. 2012. Vol. 86. No. 6. 064416
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Golikova T. E., Hübler F., BECKMANN D., Batov I., Karminskaya T. Y., Kupriyanov M. Yu., Kupriyanov M. Y., Golubov A. A., Golubov A. A., Ryazanov V. V., Ryazanov V. V. Double proximity effect in hybrid planar superconductor-normal metal/ferromagnet-superconductor structures // Physical Review B. 2012. Vol. 86. No. 6. 064416
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TY - JOUR
DO - 10.1103/PhysRevB.86.064416
UR - https://doi.org/10.1103/PhysRevB.86.064416
TI - Double proximity effect in hybrid planar superconductor-normal metal/ferromagnet-superconductor structures
T2 - Physical Review B
AU - Golikova, T. E.
AU - Hübler, F.
AU - BECKMANN, D.
AU - Batov, I.E.
AU - Karminskaya, T. Yu.
AU - Kupriyanov, M Yu
AU - Kupriyanov, Mikhail Yu.
AU - Golubov, A. A.
AU - Golubov, Alexander A.
AU - Ryazanov, V. V.
AU - Ryazanov, V V
PY - 2012
DA - 2012/08/13
PB - American Physical Society (APS)
IS - 6
VL - 86
SN - 2469-9950
SN - 2469-9969
SN - 1098-0121
SN - 1550-235X
ER -
Cite this
BibTex (up to 50 authors)
Copy
@article{2012_Golikova,
author = {T. E. Golikova and F. Hübler and D. BECKMANN and I.E. Batov and T. Yu. Karminskaya and M Yu Kupriyanov and Mikhail Yu. Kupriyanov and A. A. Golubov and Alexander A. Golubov and V. V. Ryazanov and V V Ryazanov},
title = {Double proximity effect in hybrid planar superconductor-normal metal/ferromagnet-superconductor structures},
journal = {Physical Review B},
year = {2012},
volume = {86},
publisher = {American Physical Society (APS)},
month = {aug},
url = {https://doi.org/10.1103/PhysRevB.86.064416},
number = {6},
pages = {064416},
doi = {10.1103/PhysRevB.86.064416}
}