Projects per year
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.
Original language | English |
---|---|
Pages (from-to) | 328–333 |
Journal | Nano Letters |
Volume | 22 |
Issue number | 1 |
Early online date | 3 Jan 2022 |
DOIs | |
Publication status | Published - 12 Jan 2022 |
MoE publication type | A1 Journal article-refereed |
Fingerprint
Dive into the research topics of 'Moiré-enabled topological superconductivity'. Together they form a unique fingerprint.-
-
ADaM: Artificial designer materials
Liljeroth, P., Aapro, M., Amini, M., Gonzalez Herrero, H., Khosravian, M., Drost, R., Kipnis, A., Otero Fumega, A., Arslan, B. & Karjasilta, A.
01/01/2019 → 31/12/2023
Project: Academy of Finland: Other research funding
-
E-DESIGN: Artificial designer materials
Liljeroth, P., Alldritt, B., Huang, X., Huda, M. N., Xu, C., Ganguli, S. C., Vano, V. & Yan, L.
15/08/2018 → 31/08/2024
Project: EU: ERC grants