88 citations · 139 across the 8 of their papers we have counts for
8 papers
Magnetic Field Walls in Flat-band Superconductors
Guodong Jiang, Aaron Dunbrack, Tero T. Heikkilä +1
Superconductors of different types have distinct magnetic properties; for example, they can form Abrikosov vortices or alternating normal-superconducting domains. We predict that,…
Glass Patterns in Twisted Disordered Crystals
Aaron Dunbrack
Twisting and stacking two copies of a 2D crystal can produce a long-wavelength periodic interference pattern known as a moiré pattern. Performing the same procedure with an aperiod…
Optimizing superlattice bilayer graphene for a fractional Chern insulator
Dathan Ault-McCoy, M. Nabil Y. Lhachemi, Aaron Dunbrack +2
Bernal-stacked bilayer graphene modulated by a superlattice potential is a highly tunable system predicted to realize isolated topological flat bands. In this work we calculate the…
Quantum Geometric Helical Superconductivity
Aaron Dunbrack, Pauli Virtanen, Tero T. Heikkilä
Several physical phenomena in superconductors, such as helical superconductivity and the diode effect, rely on breaking time-reversal symmetry. This symmetry-breaking is usually ac…
Chiral model of twisted bilayer graphene realized in a monolayer
Valentin Crépel, Aaron Dunbrack, Daniele Guerci +2
We demonstrate that a single layer of graphene subject to a superlattice potential nearly commensurate to a supercell exactly maps to the chiral model of…
Intrinsically-multilayer moiré heterostructures
Aaron Dunbrack, Jennifer Cano
We introduce trilayer and multilayer moiré heterostructures that cannot be viewed from the ``moiré-of-moiré" perspective of helically-twisted trilayer graphene. These ``intrinsical…
Topological and stacked flat bands in bilayer graphene with a superlattice potential
Sayed Ali Akbar Ghorashi, Aaron Dunbrack, Ahmed Abouelkomsan +3
We show that bilayer graphene in the presence of a 2D superlattice potential provides a highly tunable setup that can realize a variety of flat band phenomena. We focus on two regi…
Magic angle conditions for twisted 3D topological insulators
Aaron Dunbrack, Jennifer Cano
We derive a general low-energy theory for twisted moiré heterostructures comprised of Dirac materials. We apply our theory to heterostructures on the surface of a three dimensional…