Atomic structures and interfacial engineering of ultrathin indium intercalated between graphene and a SiC substrate.

ABSTRACT: Two-dimensional metals stabilized at the interface between graphene and SiC are attracting considerable interest thanks to their intriguing physical properties, providing promising material platforms for quantum technologies. However, the nanoscale picture of the ultrathin metals within the interface that represents their ultimate two-dimensional limit has not been well captured. In this work, we explore the atomic structures and electronic properties of atomically thin indium intercalated at the epitaxial graphene/SiC interface by means of cryogenic scanning tunneling microscopy. Two types of surfaces with distinctive crystalline characteristics are found: (i) a triangular indium arrangement epitaxially matching the (√3 × √3)R30° cell of the SiC substrate and (ii) a featureless surface of

SUBMITTER: Pham VD 

PROVIDER: S-EPMC10563832 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature