Proximity induced charge density wave in a graphene/1T-TaS₂ heterostructure.

ABSTRACT: The proximity-effect, whereby materials in contact appropriate each other's electronic-properties, is widely used to induce correlated states, such as superconductivity or magnetism, at heterostructure interfaces. Thus far however, demonstrating the existence of proximity-induced charge-density-waves (PI-CDW) proved challenging. This is due to competing effects, such as screening or co-tunneling into the parent material, that obscured its presence. Here we report the observation of a PI-CDW in a graphene layer contacted by a 1T-TaS₂ substrate. Using scanning tunneling microscopy (STM) and spectroscopy (STS) together with theoretical-modeling, we show that the coexistence of a CDW with a Mott-gap in 1T-TaS₂ coupled with the Dirac-dispersion of electrons in graphene, ma

SUBMITTER: Tilak N 

PROVIDER: S-EPMC11401908 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature