42 citations · 42 across the 1 of their papers we have counts for
10 papers
Strain-induced excitonic instability in twisted bilayer graphene
Hector Ochoa
The low-energy bands of twisted bilayer graphene form Dirac cones with approximate electron-hole symmetry at small rotation angles. These crossings are protected by the emergent sy…
Flat bands and chiral optical response of moiré insulators
H. Ochoa, A. Asenjo-Garcia
We present a low-energy model describing the reconstruction of the electronic spectrum in twisted bilayers of honeycomb crystals with broken sublattice symmetry. The resulting moir…
Tunable strain soliton networks confine electrons in Van der Waals materials
Drew Edelberg, Hemant Kumar, Vivek Shenoy +2
Sliding and twisting van der Waals layers with respect to each other gives rise to moiré structures with emergent electronic properties. Electrons in these moiré structures feel we…
Colloquium: Spintronics in graphene and other two-dimensional materials
A. Avsar, H. Ochoa, F. Guinea +3
After the first unequivocal demonstration of spin transport in graphene (Tombros et al., 2007), surprisingly at room temperature, it was quickly realized that this novel material w…
Moiré-pattern fluctuations and electron-phason coupling in twisted bilayer graphene
Héctor Ochoa
In twisted bilayer graphene, long-wavelength lattice fluctuations on the scale of the moiré period are dominated by phason modes, i.e., acoustic branches of the incommensurate latt…
Hydrodynamics of three-dimensional skyrmions in frustrated magnets
Ricardo Zarzuela, Héctor Ochoa, Yaroslav Tserkovnyak
We study the nucleation and collective dynamics of Shankar skyrmions [R. Shankar, Journal de Physique 38, 1405 (1977)] in the class of frustrated magnetic systems described by an S…