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@ARTICLE{Schmitz:874873,
author = {Schmitz, Markus René and Weber, Alexander and Petracic,
Oleg and Waschk, Markus and Zakalek, Paul and Mattauch,
Stefan and Koutsioubas, Alexandros and Brückel, Thomas},
title = {{S}train and {E}lectric {F}ield {C}ontrol of {M}agnetism in
{L}a(1-x){S}rx{M}n{O}3 {T}hin {F}ilms on {F}erroelectric
{B}a{T}i{O}3 {S}ubstrates},
journal = {New journal of physics},
volume = {22},
issn = {1367-2630},
address = {[},
publisher = {IOP73379},
reportid = {FZJ-2020-01678},
pages = {053018},
year = {2020},
abstract = {We report on the observation of strain- and
magneto-electric coupling in a system consisting of a thin
film of ferromagnetic La(1−x)Sr x MnO3 (LSMO, x = 0.5 and
0.3) on a ferroelectric BaTiO3 (BTO) substrate. Pronounced
magnetization steps occur at the BTO structural phase
transitions. We associate these steps with a strain induced
change of the magnetic anisotropy. Temperature dependent
magneto-electric coupling could be evidenced by the magnetic
response to an applied AC electric field in all
ferroelectric phases of the BTO substrate. In a DC electric
field, the magnetization changes are asymmetric with respect
to the polarity. Polarized neutron reflectometry hints to
oxygen migration as possible mechanism for this asymmetry.
It also reveals strain-induced magnetization changes
throughout most of the thickness of 252 Å (x = 0.5) and 360
Å (x = 0.3), respectively, of the LSMO layer. We conclude
that the change of the magnetization depth profile at the
interface as previously proposed by ab initio calculations
is not the relevant mechanism. Instead strain, oxygen
vacancies and frustration at interfacial steps dominate the
magnetic response to an applied electric field},
cin = {JCNS-FRM-II / JCNS-2 / MLZ / JCNS-HBS / PGI-4 / JARA-FIT},
ddc = {530},
cid = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
I:(DE-Juel1)JCNS-2-20110106 / I:(DE-588b)4597118-3 /
I:(DE-Juel1)JCNS-HBS-20180709 / I:(DE-Juel1)PGI-4-20110106 /
$I:(DE-82)080009_20140620$},
pnm = {524 - Controlling Collective States (POF3-524) / 6212 -
Quantum Condensed Matter: Magnetism, Superconductivity
(POF3-621) / 6G15 - FRM II / MLZ (POF3-6G15) / 6G4 - Jülich
Centre for Neutron Research (JCNS) (POF3-623)},
pid = {G:(DE-HGF)POF3-524 / G:(DE-HGF)POF3-6212 /
G:(DE-HGF)POF3-6G15 / G:(DE-HGF)POF3-6G4},
experiment = {EXP:(DE-MLZ)MARIA-20140101},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000533348700001},
doi = {10.1088/1367-2630/ab8260},
url = {https://juser.fz-juelich.de/record/874873},
}