Twisted two-dimensional structures open new possibilities in band structure engineering. At magic twist angles, flat bands emerge, which gave a new drive to the field of strongly correlated physics. In twisted double bilayer graphene dual gating allows changing of the Fermi level and hence the electron density and also allows tuning of the interlayer potential, giving further control over band gaps. Here, we demonstrate that by application of hydrostatic pressure, an additional control of the band structure becomes possible due to the change of tunnel couplings between the layers. We find that the flat bands and the gaps separating them can be drastically changed by pressures up to 2 GPa, in good agreement with our theoretical simulations. ...
| openaire: EC/H2020/766025/EU//QuESTechCrystal fields occur due to a potential difference between c...
A remarkable feature of the band structure of bilayer graphene at small twist angle is the appearanc...
Transport experiments in twisted bilayer graphene haverevealed multiple superconducting domes separa...
Twisted two-dimensional structures open new possibilities in band structure engineering. At magic tw...
The recently demonstrated unconventional superconductivity [Cao et al., Nature (London) 556, 43 (201...
The bandstructure of a material, playing an important role in its electron transport property, is us...
Graphene interfacing hexagonal boron nitride (h-BN) forms lateral moiré superlattices that host a wi...
Twisted double bilayer graphene has recently emerged as an interesting moiré material that exhibits ...
The electronic properties of a bilayer graphene nanoflake (BLGNF) depend sensitively upon the streng...
We report results of first-principles density functional theory calculations, which introduce a new ...
Electron-electron interactions play an important role in graphene and related systems and can induce...
Graphene moiré superlattice formed by rotating two graphene sheets can host strongly correlated and ...
In narrow electron bands in which the Coulomb interaction energy becomes comparable to the bandwidth...
Van der Waals (vdW) heterostructures are an emergent class of metamaterials comprised of vertically ...
Twisted bilayer graphene (TBLG) is one of the simplest van der Waals heterostructures, yet it yields...
| openaire: EC/H2020/766025/EU//QuESTechCrystal fields occur due to a potential difference between c...
A remarkable feature of the band structure of bilayer graphene at small twist angle is the appearanc...
Transport experiments in twisted bilayer graphene haverevealed multiple superconducting domes separa...
Twisted two-dimensional structures open new possibilities in band structure engineering. At magic tw...
The recently demonstrated unconventional superconductivity [Cao et al., Nature (London) 556, 43 (201...
The bandstructure of a material, playing an important role in its electron transport property, is us...
Graphene interfacing hexagonal boron nitride (h-BN) forms lateral moiré superlattices that host a wi...
Twisted double bilayer graphene has recently emerged as an interesting moiré material that exhibits ...
The electronic properties of a bilayer graphene nanoflake (BLGNF) depend sensitively upon the streng...
We report results of first-principles density functional theory calculations, which introduce a new ...
Electron-electron interactions play an important role in graphene and related systems and can induce...
Graphene moiré superlattice formed by rotating two graphene sheets can host strongly correlated and ...
In narrow electron bands in which the Coulomb interaction energy becomes comparable to the bandwidth...
Van der Waals (vdW) heterostructures are an emergent class of metamaterials comprised of vertically ...
Twisted bilayer graphene (TBLG) is one of the simplest van der Waals heterostructures, yet it yields...
| openaire: EC/H2020/766025/EU//QuESTechCrystal fields occur due to a potential difference between c...
A remarkable feature of the band structure of bilayer graphene at small twist angle is the appearanc...
Transport experiments in twisted bilayer graphene haverevealed multiple superconducting domes separa...