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@ARTICLE{Sprungmann:3988,
author = {Sprungmann, D. and Westerholt, K. and Zabel, H. and Weides,
M. and Kohlstedt, H.},
title = {{J}osephson tunnel junctions with ferromagnetic
{F}e0.75{C}o0.25 barriers},
journal = {Journal of applied physics},
volume = {42},
issn = {0021-8979},
address = {Melville, NY},
publisher = {American Institute of Physics},
reportid = {PreJuSER-3988},
pages = {075005},
year = {2009},
note = {The authors thank R Waser, G Pickartz and R Borowski for
support. DS, KW and HZ acknowledge financial support by
SFB-491, and MW by project WE 4359/1-1.},
abstract = {Josephson tunnel junctions with the strong ferromagnetic
alloy Fe0.75Co0.25 as the barrier material were studied. The
junctions were prepared with high quality down to a
thickness range of a few monolayers of Fe-Co. An oscillation
length of xi(F2) approximate to 0.79 nm between 0 and
pi-Josephson phase coupling and a very short decay length
xi(F1) approximate to 0.22 nm for the amplitude of the
superconducting pair wave function in the Fe-Co layer were
determined. The rapid damping of the pair wave function
inside the Fe-Co layer is caused by the strong ferromagnetic
exchange field and additional magnetic pair breaking
scattering. Josephson junctions with Fe-Co barriers show a
significantly increased tendency towards magnetic remanence
and flux trapping for larger thicknesses d(F.)},
keywords = {J (WoSType)},
cin = {IFF-6 / JARA-FIT},
ddc = {530},
cid = {I:(DE-Juel1)VDB786 / $I:(DE-82)080009_20140620$},
pnm = {Grundlagen für zukünftige Informationstechnologien},
pid = {G:(DE-Juel1)FUEK412},
shelfmark = {Physics, Applied},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000264385900011},
doi = {10.1088/0022-3727/42/7/075005},
url = {https://juser.fz-juelich.de/record/3988},
}