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SYCL: Symposium Curvilinear condensed matter

SYCL 1: Curvilinear Condensed Matter

SYCL 1.4: Hauptvortrag

Freitag, 20. März 2020, 11:15–11:45, HSZ 02

3D nanostructures for superconductivity and magnetism — •Oleksandr Dobrovolskiy — Superconductivity and Spintronics Lab, Nanomagnetism and Magnonics, University of Vienna, Austria

Patterned superconductors and nanomagnets are traditionally 2D planar structures, but recent work is expanding superconductivity and nanomagnetism into the third dimension. This expansion is triggered by advanced synthesis methods and the discovery of novel geometry- and topology-induced effects. In addition to self-assembled systems, a high level of maturity is now reached in direct-write nanofabrication by focused electron and focused ion beam induced deposition (FEBID and FIBID, respectively) [1, 2]. In this overview talk, a selection of shape- and curvature-induced effects in 3D superconducting and ferromagnetic structures will be outlined. A particular focus will be on the effects relevant for novel spintronic functionalities relying upon (i) the dynamics of Abrikosov vortices in superconductors [3], (ii) the dynamics of spin waves in ferromagnets [4], and (iii) the interplay of superconductivity and magnetism in heterostructures [5].
[1] M. Huth et al., Microelectron. Engin. 185-186 (2018) 9.
[2] R. Winkler et al., J. Appl. Phys. 125 (2019) 210901.
[3] O. Dobrovolskiy et al., Nat. Commun. 9 (2018) 4927.
[4] O. Dobrovolskiy et al., ACS Appl. Mater. Interf. 11 (2019) 17654.
[5] O. Dobrovolskiy et al., Nat. Phys. 15 (2019) 477.