A1 Journal article (refereed)
Moiré-Enabled Topological Superconductivity (2022)
Kezilebieke, S., Vaňo, V., Huda, M. N., Aapro, M., Ganguli, S. C., Liljeroth, P., & Lado, J. L. (2022). Moiré-Enabled Topological Superconductivity. Nano Letters, 22(1), 328-333. https://doi.org/10.1021/acs.nanolett.1c03856
JYU authors or editors
Publication details
All authors or editors: Kezilebieke, Shawulienu; Vaňo, Viliam; Huda, Md N.; Aapro, Markus; Ganguli, Somesh C.; Liljeroth, Peter; Lado, Jose L.
Journal or series: Nano Letters
ISSN: 1530-6984
eISSN: 1530-6992
Publication year: 2022
Publication date: 03/01/2022
Volume: 22
Issue number: 1
Pages range: 328-333
Publisher: American Chemical Society (ACS)
Publication country: United States
Publication language: English
DOI: https://doi.org/10.1021/acs.nanolett.1c03856
Publication open access: Openly available
Publication channel open access: Partially open access channel
Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/79307
Web address of parallel published publication (pre-print): https://arxiv.org/abs/2011.09760
Abstract
The search for artificial topological superconductivity has been limited by the stringent conditions required for its emergence. As exemplified by the recent discoveries of various correlated electronic states in twisted van der Waals materials, moiré patterns can act as a powerful knob to create artificial electronic structures. Here, we demonstrate that a moiré pattern between a van der Waals superconductor and a monolayer ferromagnet creates a periodic potential modulation that enables the realization of a topological superconducting state that would not be accessible in the absence of the moiré. The magnetic moiré pattern gives rise to Yu–Shiba–Rusinov minibands and periodic modulation of the Majorana edge modes that we detect using low-temperature scanning tunneling microscopy (STM) and spectroscopy (STS). Moiré patterns and, more broadly, periodic potential modulations are powerful tools to overcome the conventional constraints for realizing and controlling topological superconductivity.
Keywords: superconductors; superconductivity; nanostructures
Free keywords: scanning tunneling microscopy; topological superconductor; moiré pattern; 2D ferromagnet
Contributing organizations
Ministry reporting: Yes
Reporting Year: 2022
JUFO rating: 3
