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@INPROCEEDINGS{Stellhorn:1005523,
author = {Stellhorn, Annika and Blackburn, E. and Kentzinger,
Emmanuel and Shen, L. and Lee, W. T.},
title = {{P}olarized {SANS} $\&$ {GISANS} studies on condensed
matter systems},
reportid = {FZJ-2023-01523},
year = {2023},
abstract = {Small-Angle-Neutron-Scattering (SANS) and
Grazing-Incidence-SANS (GISANS) techniques have seen a
remarkable growth in their application in studies of
magnetic materials. In combination with neutron polarization
analysis, SANS and GISANS offer magnetic vector analysis on
the micro- and mesoscopic length scale with high signal to
noise ratio. However, in multiple sample environments like
applied magnetic and electric field and at low temperatures,
the experimental setup and data analysis procedures remain
open issues.Two examples are presented here. Firstly,
magnetic chiral domain walls in thin-film heterostructures
of Nb/FePd [1] have been investigated using GISANS with
polarization analysis in an applied magnetic field and at
low temperature. Optimizing the neutron-spin transport for
low magnetic guide fields and its impact on the data
analysis using in-house developed tools will be discussed.
Secondly, magnetic chiral phases occurring in the
magnetoelectric single crystal $Ba_{2-x}Sr_xMg_2Fe_12O_22$
[2] are studied using SANS with polarization analysis in
applied magnetic and electric fields at low temperatures.
Considerations in the instrumental design and the SANS data
analysis using the SasView software [3] will be reported.
Polarization analysis has been incorporated as an integral
part of the ESS instrument suite [4]. An introduction of its
current scope will be provided. [1] A. Stellhorn et al., New
Journal of Physics 22, 093001 (2020).[2] K. Zhai et al.,
Nature Communications 8, 519 (2017).[3] www.sasview.org[4]
W. T. Lee et. al., Report on ESS Polarisation Workshop,
ESS-3549713 (2020).},
month = {Mar},
date = {2023-03-19},
organization = {Eighth European Conference on Neutron
Scattering, TUM Department of
Mechanical Engineering and the new
Science Congress Center Munich
(Germany), 19 Mar 2023 - 23 Mar 2023},
subtyp = {Invited},
cin = {JCNS-2 / PGI-4 / JARA-FIT},
cid = {I:(DE-Juel1)JCNS-2-20110106 / I:(DE-Juel1)PGI-4-20110106 /
$I:(DE-82)080009_20140620$},
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},
typ = {PUB:(DE-HGF)24},
url = {https://juser.fz-juelich.de/record/1005523},
}