Local characterization and engineering of proximitized correlated states in graphene-NbSe${}_2$ vertical heterostructures

Abstract

Using a van der Waals vertical heterostructure consisting of monolayer graphene, monolayer hBN and NbSe${}_2$, we have performed local characterization of induced correlated states in different configurations. At a temperature of 4.6 K, we have shown that both superconductivity and charge density waves can be induced in graphene from NbSe2 by proximity effects. By applying a vertical magnetic field, we imaged the Abrikosov vortex lattice and extracted the coherence length for the proximitized superconducting graphene. We further show that the induced correlated states can be completely blocked by adding a monolayer hBN between the graphene and the NbSe${}_2$, which demonstrates the importance of the tunnel barrier and surface conditions between the normal metal and superconductor for the proximity effect.

7 pages, 5 figures

References in corpus (15)

• The electronic properties of graphene
• Emergence of Superlattice Dirac Points in Graphene on Hexagonal Boron Nitride
• Hunting for Monolayer Boron Nitride: Optical and Raman Signatures
• Specular Andreev reflection in graphene
• Recent progress in the assembly of nanodevices and van der Waals heterostructures by deterministic placement of 2D materials
• Exotic non-Abelian anyons from conventional fractional quantum Hall states
• Fractionalizing Majorana fermions: non-abelian statistics on the edges of abelian quantum Hall states
• Kohn-Luttinger superconductivity in graphene
• Role of pseudospin in quasiparticle interferences in epitaxial graphene probed by high-resolution scanning tunneling microscopy
• Possible Triplet $p+ip$ Superconductivity in Graphene at Low Filling
• Tunable Klein-like tunneling of high-temperature superconducting pairs into graphene
• Superconducting proximity effect in a transparent van der Waals superconductor-metal junction
• Superconductivity in twisted Graphene $\mathrm{NbS}{\mathrm{e}}_2$ heterostructures
• Band Structure Mapping of Bilayer Graphene via Quasiparticle Scattering
• Non-Abelian Anyon Superconductivity

Cited by in corpus (2)

• Revealing the Charge Density Wave Proximity Effect in Graphene on 1T-TaS${}_2$
• Twisted Bogoliubov quasiparticles in the superconducting NbSe${}_2$ monolayer on graphene