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@ARTICLE{Kasama:201629,
author = {Kasama, Takeshi and Harrison, Richard J. and Church, Nathan
S. and Nagao, Masahiro and Feinberg, Joshua M. and
Dunin-Borkowski, Rafal},
title = {{F}errimagnetic/ferroelastic domain interactions in
magnetite below the {V}erwey transition. {P}art {I}:
electron holography and {L}orentz microscopy},
journal = {Phase transitions},
volume = {86},
number = {1},
issn = {1029-0338},
address = {London [u.a.]},
publisher = {Taylor $\&$ Francis},
reportid = {FZJ-2015-03923},
pages = {67 - 87},
year = {2013},
abstract = {The crystallographic and magnetic microstructure of
magnetite (Fe3O4) below the Verwey transition (∼120 K)
is studied using transmission electron microscopy. The low
temperature phase is found to have a monoclinic C-centered
lattice with a c-glide plane perpendicular to the b-axis,
which allows twin-related crystal orientations to be
distinguished. Off-axis electron holography and Lorentz
electron microscopy are used to show that magnetic domains
present at room temperature become subdivided into
sub-micron-sized magnetic domains below the Verwey
transition, with the magnetization direction in each
magnetic domain oriented along the monoclinic [001] axis.
The nature of the interactions between the magnetic domain
walls and the ferroelastic twin walls is investigated.
Cooling and warming cycles through the transition
temperature are used to show that a memory effect is likely
to exist between the magnetic states that form above and
below the transition. Our results suggest that ferroelastic
twin walls have a strong influence on the low temperature
magnetic properties of magnetite.},
cin = {PGI-5},
ddc = {540},
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:000312586700007},
doi = {10.1080/01411594.2012.695373},
url = {https://juser.fz-juelich.de/record/201629},
}