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@ARTICLE{Paul:29229,
author = {Paul, A. and Damm, T. and Bürgler, D. E. and Stein, S. and
Kohlstedt, H. and Grünberg, P. A.},
title = {{O}ptimizing the giant magnetoresistance of
{N}i{F}e/{C}u/{C}o pseudo spin-valves prepared by magnetron
sputtering},
journal = {Applied physics letters},
volume = {82},
issn = {0003-6951},
address = {Melville, NY},
publisher = {American Institute of Physics},
reportid = {PreJuSER-29229},
pages = {1905 - 1907},
year = {2003},
note = {Record converted from VDB: 12.11.2012},
abstract = {We study the dependence of magnetic and magnetotransport
properties of NiFe/Cu/Co pseudo spin-valves on the pressure
of the Ar sputtering gas during magnetron deposition. The
giant magnetoresistance (GMR) ratio as a function of the
sputtering pressure behaves nonmonotonically with a maximum
of about $4\%$ at an intermediate pressure of 0.87x10(-2)
mbar. Magneto-optic Kerr-effect measurements reveal
different coercive fields and independent switching of the
Co and NiFe layers. The structural characterization by x-ray
scattering shows no significant pressure dependence.
However, we observe by atomic force microscopy a variation
of the grain structure with increasing sputtering pressure;
the grain size first decreases and then the grains start
clustering for highest pressures. The reduced coercive field
and the lower GMR ratio indicate that the clustered grains
have weaker magnetic pinning and increased spin-independent
scattering. (C) 2003 American Institute of Physics.},
keywords = {J (WoSType)},
cin = {IFF-IEE / IFF-EKM},
ddc = {530},
cid = {I:(DE-Juel1)VDB38 / I:(DE-Juel1)VDB35},
pnm = {Kondensierte Materie / Materialien, Prozesse und
Bauelemente für die Mikro- und Nanoelektronik},
pid = {G:(DE-Juel1)FUEK242 / G:(DE-Juel1)FUEK252},
shelfmark = {Physics, Applied},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000181666500033},
doi = {10.1063/1.1563056},
url = {https://juser.fz-juelich.de/record/29229},
}