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@ARTICLE{Kohn:201622,
author = {Kohn, Amit and Tal, Nadav and Elkayam, Ayala and Kovàcs,
Andras and Li, Dalai and Wang, Shouguo and Ghannadzadeh,
Saman and Hesjedal, Thorsten and Ward, Roger C. C.},
title = {{S}tructure of epitaxial {L}10-{F}e{P}t/{M}g{O}
perpendicular magnetic tunnel junctions},
journal = {Applied physics letters},
volume = {102},
number = {6},
issn = {0003-6951},
address = {Melville, NY},
publisher = {American Inst. of Physics},
reportid = {FZJ-2015-03916},
pages = {062403 -},
year = {2013},
abstract = {Perpendicular magnetic tunnel junctions (p-MTJs) with MgO
barriers are interesting for high-density
information-storage devices. Chemically ordered L10-FePt is
a potential electrode due to its large perpendicular
magnetocrystalline anisotropy. To-date, a single theoretical
study on L10-FePt/MgO p-MTJ based on an idealized structure
reported significant dependence of spin-dependent tunneling
on interface structure. [Y. Taniguchi et al., IEEE Trans.
Magn. 44, 2585 (2008).] We report a structural study of
epitaxial
L10-FePt(001)[110]//MgO(001)[110]//L10-FePt(001)[110]
p-MTJs, focusing on the interfaces using
aberration-corrected scanning transmission electron
microscopy. Interfaces are semi-coherent, with oxygen
atomic-columns of MgO located opposite to iron
atomic-columns in L10-FePt. Up to three lattice planes show
atomic-column steps, the origin of which is attributed to
antiphase boundaries in L10-FePt.},
cin = {PGI-5},
ddc = {530},
cid = {I:(DE-Juel1)PGI-5-20110106},
pnm = {42G - Peter Grünberg-Centre (PG-C) (POF2-42G41)},
pid = {G:(DE-HGF)POF2-42G41},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000315053300044},
doi = {10.1063/1.4791576},
url = {https://juser.fz-juelich.de/record/201622},
}