Unconventional superconductivity on honeycomb lattice: theory of Kekulé order parameter. This article is the first theoretical prediction of fractional charge in two dimensions using the Kekulé order parameter. Electron fractionalization in two-dimensional graphene-like structures. Fractional charge from topology in polyacetylene and graphene. Strain-induced pseudo-magnetic fields greater than 300 Tesla in graphene nanobubbles. This article presents the first theoretical framework for realizing high perpendicular pseudomagnetic fields in graphene by means of strain. Energy gaps and a zero-field quantum Hall effect in graphene by strain engineering. Symmetry-based approach to electron–phonon interactions in graphene. Designer quantum spin Hall phase transition in molecular graphene. Low-dimensional semiconductor superlattices formed by geometric control over nanocrystal attachment. Massive Dirac fermions and Hofstadter butterfly in a van der Waals heterostructure. Cloning of Dirac fermions in graphene superlattices. Hofstadter's butterfly and the fractal quantum Hall effect in moiré superlattices. Laterally modulated 2D electron system in the extreme quantum limit. Evidence of Hofstadter's fractal energy spectrum in the quantized Hall conductance. Magnetoresistance oscillations in a two-dimensional electron gas induced by a submicrometer periodic potential. Negative differential conductivity in lateral surface superlattices. Superlattice and negative differential conductivity in semiconductors. Conical diffraction and gap solitons in honeycomb photonic lattices. Proposed method for detection of the pseudospin-1/2 Berry phase in a photonic crystal with a Dirac spectrum. Extremal transmission at the Dirac point of a photonic band structure. Possible realization of directional optical waveguides in photonic crystals with broken time-reversal symmetry. This article presents the first realization of a hexagonal-like lattice and Dirac points for fermions in ultracold atomic lattices. Creating, moving and merging Dirac points with a Fermi gas in a tunable honeycomb lattice. Tarruell, L., Greif, D., Uehlinger, T., Jotzu, G. This article represents the first realization of a hexagonal optical lattice for cold atoms although it deals with bosons, it already shows specific consequences of hexagonal geometry. Multi-component quantum gases in spin-dependent hexagonal lattices. Dirac-point engineering and topological phase transitions in honeycomb optical lattices. This article reports the first observation of massless and massive Dirac fermions, their tunable electric and magnetic gauge fields, and the Kekulé distortion in an artificial condensed-matter system. Designer Dirac fermions and topological phases in molecular graphene. Transport through an electrostatically defined quantum dot lattice in a two-dimensional electron gas. From laterally modulated two-dimensional electron gas towards artificial graphene. This article presents combined theoretical and experimental work on the formation of Hubbard split bands in a 2DEG subject to a honeycomb periodic potential and a perpendicular magnetic field. Two-dimensional Mott–Hubbard electrons in an artificial honeycomb lattice. Delocalized–localized transition in a semiconductor two-dimensional honeycomb lattice. Photoluminescence data demonstrating the impact of the honeycomb lattice on the electron gas were also reported.ĭe Simoni, G. This article presents the first theoretical analysis based on plane-wave methods of the formation of Dirac bands in a patterned semiconductor. Engineering artificial graphene in a two-dimensional electron gas. This article presents the first theoretical analysis and prescription by means of nearly free electron perturbation theory for realizing massless Dirac fermions in patterned semiconductors. Making massless Dirac fermions from a patterned two-dimensional electron gas. Bloch-Zener oscillations across a merging transition of Dirac points. Designing Dirac points in two-dimensional lattices. Tilted anisotropic Dirac cones in quinoid-type graphene and α-(BEDT-TTF)2I3. Graphene: Carbon in Two Dimensions (Cambridge Univ.
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