6 papers
Fine-Tuned Machine-Learned Interatomic Potentials for Structural and Vibrational Properties of Twisted 2D Materials
Viet-Anh Tran, Viet-Hung Nguyen, Wei Chen +2
Twisted van der Waals bilayers form moiré superlattices whose structural and vibrational properties are highly sensitive to variations in local stacking registry and the degree of…
Mapping the twist angle dependence of quasi-Brillouin zones in doubly aligned graphene/BN heterostructures
Jorge Vallejo Bustamante, Viet-Hung Nguyen, Liam S. Farrar +5
When monolayer graphene is crystallographically aligned to hexagonal boron nitride (BN), a moiré superlattice is formed, producing characteristic satellite Dirac peaks in the elec…
Proximity Effects Between the Graphene Quasicrystal and Magic-Angle Twisted Bilayer Graphene
Pedro Alcázar Guerrero, Viet-Hung Nguyen, Aron W. Cummings +2
We present a numerical study of three-layer graphene heterostructures in which the layers are twisted by the magic angle (1.1) or by to form a graphe…
Disorder-Induced Delocalization in Magic-Angle Twisted Bilayer Graphene
Pedro Alcázar Guerrero, Viet-Hung Nguyen, Jorge MartÃnez Romeral +4
Flat bands in moiré systems are exciting new playgrounds for the generation and study of exotic many-body physics phenomena in low-dimensional materials. Such physics is attribute…
Impact of the angular alignment on the crystal field and intrinsic doping of bilayer graphene/BN heterostructures
L. S. Farrar, G. Maffione, V. -H. Nguyen +5
The ability to tune the energy gap in bilayer graphene makes it the perfect playground for the study of the effects of internal electric fields, such as the crystalline field, whic…
Recursive Green's functions optimized for atomistic modelling of large superlattice-based devices
Viet-Hung Nguyen, Jean-Christophe Charlier
The Green's function method is recognized to be a very powerful tool for modelling quantum transport in nanoscale electronic devices. As atomistic calculations are generally expens…