SKM 2021 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 3: Posters Magnetism I
MA 3.11: Poster
Montag, 27. September 2021, 13:30–16:30, P
Inverse proximity effects in superconductor/ferromagnet heterostructures studied by GISANS — •Annika Stellhorn1,2, Emmanuel Kentzinger1, Anirban Sarkar1, Vitaliy Pipich3, Kathryn Krycka4, Patrick Schöffmann1, Tanvi Bhatnagar-Schöffmann1,5, and Thomas Brückel1 — 1Forschungszentrum Jülich GmbH, JCNS-2 and PGI-4, JARA-FIT, Jülich, GERMANY — 2Lund University, Division of Synchrotron Radiation Research, Lund, Sweden — 3Forschungszentrum Jülich GmbH, JCNS@MLZ, Garching, Germany — 4National Institute of Standards and Technology, NIST-NCNR, Gaithersburg, USA — 5Forschungszentrum Jülich GmbH, PGI-5, Jülich, GERMANY
Understanding the origin of proximity effects at the interfaces of superconducting and ferromagnetic materials is the key for an application in fluxonic devices and in spintronics. Depending on the ferromagnetic magnetocrystalline anisotropy, such proximity effects can lead to domain-wall-superconductivity or a generation of long-ranged spin-triplet Cooper pairs. This work presents a study of the depth-resolved lateral magnetic profile in the superconductor(S)/ferromagnet(F) thin film system Nb(S)/FePd(F) with perpendicular magnetic anisotropy by Grazing-Incidence Small-Angle Neutron Scattering (GISANS) with polarization analysis. In these systems, the transition from the normal-conducting state via a domain-wall-superconducting state to a complete-superconducting state is accompanied by an increase of the domain wall width.