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@ARTICLE{Posen:279243,
author = {Posen, Sam and Transtrum, Mark K. and Catelani, Gianluigi
and Liepe, Matthias U. and Sethna, James P.},
title = {{S}hielding {S}uperconductors with {T}hin {F}ilms as
{A}pplied to rf {C}avities for {P}article {A}ccelerators},
journal = {Physical review applied},
volume = {4},
number = {4},
issn = {2331-7019},
address = {College Park, Md. [u.a.]},
publisher = {American Physical Society},
reportid = {FZJ-2015-07258},
pages = {044019},
year = {2015},
abstract = {Determining the optimal arrangement of superconducting
layers to withstand large-amplitude ac magnetic fields is
important for certain applications such as superconducting
radio-frequency cavities. In this paper, we evaluate the
shielding potential of the
superconducting-film–insulating-film–superconductor
(SIS′) structure, a configuration that could provide
benefits in screening large ac magnetic fields. After
establishing that, for high-frequency magnetic fields, flux
penetration must be avoided, the superheating field of the
structure is calculated in the London limit both numerically
and, for thin films, analytically. For intermediate film
thicknesses and realistic material parameters, we also solve
numerically the Ginzburg-Landau equations. It is shown that
a small enhancement of the superheating field is possible,
on the order of a few percent, for the SIS′ structure
relative to a bulk superconductor of the film material, if
the materials and thicknesses are chosen appropriately.},
cin = {PGI-2},
ddc = {530},
cid = {I:(DE-Juel1)PGI-2-20110106},
pnm = {144 - Controlling Collective States (POF3-144)},
pid = {G:(DE-HGF)POF3-144},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000363795900001},
doi = {10.1103/PhysRevApplied.4.044019},
url = {https://juser.fz-juelich.de/record/279243},
}