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Moir\'e-enabled topological superconductivity
- Source :
- Nano Letters
- Publication Year :
- 2020
-
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, moir\'e patterns can act as a powerful knob to create artificial electronic structures. Here, we demonstrate that a moir\'e 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 moir\'e. The magnetic moir\'e 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). Moir\'e patterns and, more broadly, periodic potential modulations are powerful tools to overcome the conventional constrains for realizing and controlling topological superconductivity.<br />Comment: 6 pages, 4 figures
- Subjects :
- Letter
suprajohtavuus
Condensed Matter - Mesoscale and Nanoscale Physics
Mechanical Engineering
Condensed Matter - Superconductivity
topological superconductor
Bioengineering
02 engineering and technology
General Chemistry
021001 nanoscience & nanotechnology
Condensed Matter Physics
2D ferromagnet
01 natural sciences
suprajohteet
nanorakenteet
Condensed Matter::Superconductivity
0103 physical sciences
scanning tunneling microscopy
General Materials Science
010306 general physics
0210 nano-technology
moiré pattern
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Nano Letters
- Accession number :
- edsair.doi.dedup.....a0e243fc7225e3a3714938f6a22b3ad9