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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 Stellhorn^1,2, Emmanuel Kentzinger¹, Anirban Sarkar¹, Vitaliy Pipich³, Kathryn Krycka⁴, Patrick Schöffmann¹, Tanvi Bhatnagar-Schöffmann^1,5, 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.