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@INPROCEEDINGS{Stellhorn:1031666,
author = {Stellhorn, Annika and Backs, Alex and Jackson, Andrew and
Blackburn, Elizabeth and Kentzinger, Emmanuel and Lee, Wai
Tung},
title = {{M}agnetic chirality in
superconducting/ferromagneticheterostruc-tures: insight via
polarized {GISANS}},
reportid = {FZJ-2024-05776},
year = {2024},
abstract = {The coexistence of different order parameters can lead to
exotic new quantum phenomena. In hardcondensed matter
materials, their interplay often generates magnetic chiral
structures with correlationson the nanometer and mesoscopic
length scale, which can be explored by
polarization-analyzedSmall-Angle-Neutron-Scattering (SANS)
in bulk systems, and by its surface-sensitive
counterpartGrazing-Incidence-SANS (GISANS) in thin film
structures. Thin film Nb/FePd exhibits
coexistingsuperconducting and ferromagnetic phases,
affecting both the superconducting and the magneticorder
around its superconducting Tc [1,2]. While around Tc in Nb
the superconducting state is confinedabove the domain walls
of FePd, the superconducting state itself is affecting the
width wDWof magnetic domain walls in FePd [1].Although a
Dzyaloshinskii–Moriya Interaction (DMI) leading to
magnetic chirality is not expectedin the L10-structured
FePd, its domain walls obtain a preferred chiral direction,
unveiled by polarizedGISANS. An extensive study combining
GISANS, circular-dichroism X-ray Resonant MagneticScattering
(CD-XRMS), and Density Functional Theory (DFT), yields
unique insight into the chiralwall formation and its
origin.At the ESS, neutron polarization analysis will be
supported on many instruments [3], and togetherwith a wide
range of sample environments will enable pioneering science
projects. Based on theabove-mentioned science case using
polarized GISANS, I will additionally present the impact
frominstrumentational and data reduction aspects.[1] A.
Stellhorn, PhD thesis, RWTH Aachen University (2021).[2] A.
Stellhorn et al., New Journal of Physics 22, 093001
(2020).[3] W. T. Lee et al., Report on ESS Polarisation
Workshop, ESS-3549713 (2020).},
month = {Oct},
date = {2024-10-08},
organization = {JCNS Workshop 2024, Trends and
Perspectives in Neutron Scattering:
Functional Interfaces, Evangelische
Akademie Tutzing (Germany), 8 Oct 2024
- 11 Oct 2024},
subtyp = {Invited},
cin = {JCNS-2 / JARA-FIT},
cid = {I:(DE-Juel1)JCNS-2-20110106 / $I:(DE-82)080009_20140620$},
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)6},
url = {https://juser.fz-juelich.de/record/1031666},
}