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@ARTICLE{Lupascu:280556,
author = {Lupascu, Doru C. and Wende, Heiko and Etier, Morad and
Nazrabi, Ahmadshah and Anusca, Irina and Trivedi, Harsh and
Shvartsman, Vladimir V. and Landers, Joachim and Salamon,
Soma and Schmitz-Antoniak, Carolin},
title = {{M}easuring the magnetoelectric effect across scales},
journal = {GAMM-Mitteilungen},
volume = {38},
number = {1},
issn = {0936-7195},
address = {Weinheim},
publisher = {Wiley-VCH},
reportid = {FZJ-2016-00324},
pages = {25 - 74},
year = {2015},
abstract = {Magnetoelectric coupling is the material based coupling
between electric and magnetic fields without recurrence to
electrodynamics. It can arise in intrinsic multiferroics as
well as in composites. Intrinsic multiferroics rely on
atomistic coupling mechanisms, or coupled crystallographic
order parameters, and even more complex mechanisms. They
typically require operating temperatures much below T = 0°C
in order to exhibit their coupling effects. Room temperature
applications are thus excluded. Consequently, composites
have been designed to circumvent this limitation. They rely
on field coupling between magnetostrictive and piezoelectric
materials or in more advanced scenarios on quantum coupling
in between both phases.This overview will describe
experimental techniques and their particular limitations in
accessing these coupling phenomena at different scales.
Strain coupling is the dominant coupling mechanism at the
macroscale as well as down to the micrometer. At the
nanoscale more subtle effects can arise and some care has to
be taken when investigating local coupling at interfaces
using scanning probe techniques, e. g. due to semiconductor
effects, field screening, or gradient and surface effects.
At the smallest length scale atomic or molecular coupling
can be tested using X-ray dichroism or probe atoms like 57Fe
in Mössbauer spectroscopy. We display a selection of
measuring techniques at the different scales and outline
possible pitfalls for experimentalists as well as
theoreticians when using material parameters extracted from
such experimental work},
cin = {PGI-6},
ddc = {530},
cid = {I:(DE-Juel1)PGI-6-20110106},
pnm = {522 - Controlling Spin-Based Phenomena (POF3-522)},
pid = {G:(DE-HGF)POF3-522},
typ = {PUB:(DE-HGF)16},
doi = {10.1002/gamm.201510003},
url = {https://juser.fz-juelich.de/record/280556},
}