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DS: Fachverband Dünne Schichten

DS 20: Poster

DS 20.51: Poster

Donnerstag, 12. März 2026, 18:30–20:30, P2

Superconducting diode effect in in epitaxial thin films of elemental superconductors — •Shanshan Guo¹, Nikolai Peshcherenko¹, Changjiang Yi¹, Ning Mao¹, Heda Zhang¹, Heiko Reith², Walter Schnelle¹, Edouard Lesne¹, Kornelius Nielsch², Yang Zhang³, and Claudia Felser¹ — ¹Max-Planck-Institute für Chemische Physik fester Stoffe, Dresden, Germany — ²Leibnitz IFW Dresden, Dresden, Germany — ³Department of Physics and Astronomy, University of Tennessee, Knoxville, USA

The superconducting diode effect allows for nonreciprocal, dissipationless electronic transport. It has the potential to enhance transfer current efficiency compared to the traditional semiconducting equivalent and hence have a significant impact on the design of future electronic devices. While the field is fast evolving, there are still many unanswered questions about the underlying mechanisms and origin of the phenomenon. Here we investigate the superconducting diode effect in epitaxial thin films of elemental superconductors (V, Nb and Ta). We probe its supercurrent nonreciprocity as a function of magnetic field and temperature and discuss the role spin-orbital-coupling strength plays in the superconducting diode effect in a combined simple material/device structure. Our work should stimulate the refinement of theoretical models and enable a deeper understanding of the supercurrent rectification effect.

Keywords: Superconducting diode effect; elemental superconductor thin film; dissipationless electronic transport; spin-orbital-coupling; supercurrent nonreciprocity