Physical Review B, volume 103, issue 9, publication number 094509
Crossover between short- and long-range proximity effects in superconductor/ferromagnet/superconductor junctions with Ni-based ferromagnets
Kapran O M
1
,
Golod T.
1
,
Iovan A.
1, 2
,
Sidorenko Anatolie
3, 4
,
Golubov Alexander A.
5, 6
,
Golubov A. A.
5, 6
,
Krasnov Vladimir M
1, 6
1
Publication type: Journal Article
Publication date: 2021-03-15
Journal:
Physical Review B
Quartile SCImago
Q1
Quartile WOS
Q2
Impact factor: 3.7
ISSN: 24699950, 24699969, 10980121, 1550235X
Abstract
We study Superconductor/Ferromagnet/Superconductor junctions with CuNi, PtNi, or Ni interlayers. Remarkably, we observe that supercurrents through Ni can be significantly larger than through diluted alloys. The phenomenon is attributed to the dirtiness of disordered alloys leading to a short coherence length despite a small exchange energy. To the contrary, pure Ni is clean resulting in a coherence length as long as in a normal metal. Analysis of temperature dependencies of critical currents reveals a crossover from short (dirty) to long (clean) range proximity effects in Pt1-xNix with increasing Ni concentration. Our results point out that structural properties of a ferromagnet play a crucial role for the proximity effect and indicate that conventional strong-but-clean ferromagnets can be advantageously used in superconducting spintronic devices.
Citations by journals
1
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Physical Review B
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Physical Review B
1 publication, 50%
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IEEE Transactions on Applied Superconductivity
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IEEE Transactions on Applied Superconductivity
1 publication, 50%
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1
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Citations by publishers
1
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American Physical Society (APS)
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American Physical Society (APS)
1 publication, 50%
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IEEE
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IEEE
1 publication, 50%
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1
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Kapran O. M. et al. Crossover between short- and long-range proximity effects in superconductor/ferromagnet/superconductor junctions with Ni-based ferromagnets // Physical Review B. 2021. Vol. 103. No. 9. 094509
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Kapran O. M., Golod T., Iovan A., Sidorenko A., Golubov A. A., Golubov A. A., Krasnov V. M. Crossover between short- and long-range proximity effects in superconductor/ferromagnet/superconductor junctions with Ni-based ferromagnets // Physical Review B. 2021. Vol. 103. No. 9. 094509
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TY - JOUR
DO - 10.1103/PhysRevB.103.094509
UR - https://doi.org/10.1103%2FPhysRevB.103.094509
TI - Crossover between short- and long-range proximity effects in superconductor/ferromagnet/superconductor junctions with Ni-based ferromagnets
T2 - Physical Review B
AU - Kapran, O M
AU - Golod, T.
AU - Iovan, A.
AU - Sidorenko, Anatolie
AU - Golubov, A. A.
AU - Krasnov, Vladimir M
AU - Golubov, Alexander A.
PY - 2021
DA - 2021/03/15 00:00:00
PB - American Physical Society (APS)
IS - 9
VL - 103
SN - 2469-9950
SN - 2469-9969
SN - 1098-0121
SN - 1550-235X
ER -
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@article{2021_Kapran
author = {O M Kapran and T. Golod and A. Iovan and Anatolie Sidorenko and A. A. Golubov and Vladimir M Krasnov and Alexander A. Golubov},
title = {Crossover between short- and long-range proximity effects in superconductor/ferromagnet/superconductor junctions with Ni-based ferromagnets},
journal = {Physical Review B},
year = {2021},
volume = {103},
publisher = {American Physical Society (APS)},
month = {mar},
url = {https://doi.org/10.1103%2FPhysRevB.103.094509},
number = {9},
doi = {10.1103/PhysRevB.103.094509}
}