Proximity Induced Superconductivity in Monolayer MoS2

Molybdenum disulphide (MoS₂) has emerged as a prototypical materials among the 2D transition metal dichalcogenides for its stability, low cost and unique electronic, optical and mechanical properties. Its electronic properties can be tuned using different control parameters. This great sensitivity presents an opportunity to functionalize its properties through defect engineering, strain or by proximity to another material. We use high resolution low temperature STM/STS to study the local electronic properties of monolayer MoS₂ and the proximity induced superconductivity in monolayer MoS₂ placed on top of a Pb this film. We find a superconducting coherence peak amplitude modulated spatially in a Moire pattern on the surface of MoS₂ . Our study indicates that the local modulation of induced superconductivity in MoS₂ could be controlled via geometrically tuning. This study suggests that heterostructures based on MoS₂ offer a viable possibility to tune its electronic properties and open unprecedented possibilities of combining them for technological use.