TY  - CONF
AU  - Stellhorn, A.
AU  - Kentzinger, Emmanuel
AU  - Sarkar, Anirban
AU  - Pipich, Vitaliy
AU  - Krycka, Kathryn
AU  - Schöffmann, Patrick
AU  - Bhatnagar, Tanvi
AU  - Brückel, Thomas
TI  - Interplay of proximity effects in Superconductor/Ferromagnet heterostructures
M1  - FZJ-2021-03008
PY  - 2021
AB  - Proximity effects in superconductor/ferromagnet thin film heterostructures are ahighly topical issue due to their potential application in superconducting spin valvesor fluxonic devices [1, 2]. Physical properties can be controlled by an appliedmagnetic field and emerge for example as stray-field generated domainsuperconductivityor spin-triplet correlations. Our goal is to investigate their interplayand tunability by an external magnetic field. We use a heterostructure system ofNb/FePd with varying strength of magnetocrystalline anisotropy and a lateral domainstructure, grown by molecular beam epitaxy.On the one hand, macroscopic magnetoelectric transport measurements reveal aconfined superconducting state due to the stray fields of L10-ordered FePd. On theother hand, direct proximity effects at the Nb/FePd interface with a non-collinearmagnetization presumably lead to the generation of spin-triplet Cooper paircomponents with long penetration depth within the ferromagnetic layer [3]. PolarizedGrazing-Incidence Small-Angle Neutron Scattering (GISANS) probe exchangemechanisms on the microscopic scale and reveal a change in the ferromagneticdomain pattern by an onset of domain-wall-superconductivity. This mechanismcannot be revealed by macroscopic magnetization measurements, which makesGISANS the method of choice for detecting inverse superconducting proximityeffects.
T2  - 725. WE-Heraeus-Seminar: Magnetic Small Angle Neutron Scattering – from Nanoscale Magnetism to Long‐Range Magnetic Structures
CY  - 31 May 2021 - 3 Jun 2021, online event (online event)
Y2  - 31 May 2021 - 3 Jun 2021
M2  - online event, online event
LB  - PUB:(DE-HGF)1
UR  - https://juser.fz-juelich.de/record/894054
ER  -