Engineering 1D topological superconductivity in a van der Waals heterostructure

Datum

07.05.2026

Zeit

10:00 - 11:00

Sprecher

Dr. Felix Lüpke

Zugehörigkeit

Peter Grünberg Institut for Quantum Nanoscience Forschungszentrum Jülich

Sprache

en

Hauptthema

Materialien

Host

Rita Taubert

Beschreibung

Engineering 1D topological superconductivity in a van der Waals heterostructure The assembly of two-dimensional van der Waals materials into heterostructures provides a versatile platform for the engineering of electronic states via proximity effects, enabling the creation of novel topological phases that do not exist in the individual layers [1,2]. The resulting heterostructure properties are typically well accessible on their surfaces, such that scanning tunneling microscopy (STM) has become an important tool for their structural and electronic characterization. In 2D topological insulator monolayer WTe2 placed on superconducting NbSe2, we observe robust proximity-induced gaps in the bulk as well as the topological edge states [1,3]. Magnetic field-dependent measurements and zero-bias conductance features at magnetic scatterers coupled to the proximitized edge state support the realization of 1D topological superconductivity in this system. References 1. F. Lüpke et al., Nature Physics 16, 526 (2020) 2. K. Jin et al., Advanced Materials Interfaces 11, 2300658 (2024) 3. J. Martinez-Castro et al., arXiv.2304.08142

Links

• Seminars at the IFW

Letztmalig verändert: 07.05.2026, 07:38:33