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@ARTICLE{BhatnagarSchffmann:892900,
author = {Bhatnagar-Schöffmann, Tanvi and Kentzinger, Emmanuel and
Sarkar, Anirban and Schöffmann, Patrick and Lan, Qianqian
and Jin, Lei and Kovacs, Andras and Grutter, Alexander and
Kirby, Brian and Beerwerth, Randolf and Waschk, Markus and
Stellhorn, Annika and Rücker, Ulrich and Dunin-Borkowski,
Rafal E and Brückel, Thomas},
title = {{D}ifferentiation between strain and charge mediated
magnetoelectric coupling in {L}a 0.7 {S}r 0.3 {M}n{O} 3 /
{P}b({M}g 1/3 {N}b 2/3 ) 0.7 {T}i 0.3 {O} 3 (001)},
journal = {New journal of physics},
volume = {23},
issn = {1367-2630},
address = {[London]},
publisher = {IOP},
reportid = {FZJ-2021-02424},
pages = {063043},
year = {2021},
abstract = {Magnetoelectric (ME) coupling in
La0.7Sr0.3MnO3/Pb(Mg1/3Nb2/3)0.7Ti0.3O3 (LSMO/PMN–PT
(001)) has been probed in the past years to identify the
underlying mechanism behind it. PMN–PT, which is well
known for its excellent piezoelectric properties, also
exhibits ferroelectricity. This motivates our interest to
differentiate which effect is dominant for this 'voltage
control of magnetism'. Here, we present results for the ME
coupling at different temperatures: 300 K and 80 K. In this
article we discuss and explain, how the nature of ME
coupling is influenced by different parameters such as
magnetic field, electric field, directional dependence (hard
axis, easy axis) and temperature. Owing to large lattice
mismatch between LSMO and PMN–PT, the strain-mediated
coupling is strongly prevalent, however the change in strain
behaviour from butterfly loop to linear loop is observed as
a function of temperature. ME measurements are performed
along hard axis [100] and easy axis [110] of LSMO in the
presence of remanent magnetic field which showcases the pure
influence of electric field on the system, resulting in a
combination of strain- and charge-mediated coupling. The
magnetic depth profile is probed by polarized neutron
reflectometry as a function of electric field which
demonstrates the existence of an interlayer with reduced
nuclear scattering length density and reduced magnetic
scattering length density at the interface. From
transmission electron microscopy, stoichiometric variations
are observed due to the presence of Mn3O4 particles at the
interface.},
cin = {JCNS-2 / PGI-4 / JARA-FIT / ER-C-1 / PGI-5 / JCNS-FRM-II},
ddc = {530},
cid = {I:(DE-Juel1)JCNS-2-20110106 / I:(DE-Juel1)PGI-4-20110106 /
$I:(DE-82)080009_20140620$ / I:(DE-Juel1)ER-C-1-20170209 /
I:(DE-Juel1)PGI-5-20110106 /
I:(DE-Juel1)JCNS-FRM-II-20110218},
pnm = {632 - Materials – Quantum, Complex and Functional
Materials (POF4-632) / 6G4 - Jülich Centre for Neutron
Research (JCNS) (FZJ) (POF4-6G4)},
pid = {G:(DE-HGF)POF4-632 / G:(DE-HGF)POF4-6G4},
experiment = {EXP:(DE-MLZ)External-20140101},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000662666400001},
doi = {10.1088/1367-2630/ac04c7},
url = {https://juser.fz-juelich.de/record/892900},
}