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7 papers · 2 filters
Compressibility enhancement in an almost staggered interacting Harper model
Bat-el Friedman, Richard Berkovits
We discuss the compressibility in the almost staggered fermionic Harper model with repulsive interactions in the vicinity of half-filling. It has been shown by Kraus et al. [33] th…
Raman scattering and electrical resistance of highly disordered graphene
I. Shlimak, A. Haran, E. Zion +9
Raman scattering (RS) spectra and current-voltage characteristics at room temperature were measured in six series of small samples fabricated by means of electron-beam lithography…
Resolving transitions in the mesoscale domain configuration in VO using laser speckle pattern analysis
Katyayani Seal, Amos Sharoni, Jamie M. Messman +5
The configuration and evolution of coexisting mesoscopic domains with contrasting material properties are critical in creating novel functionality through emergent physical propert…
Collective Edge Modes near the onset of a graphene quantum spin Hall state
Ganpathy Murthy, Efrat Shimshoni, H. A. Fertig
Graphene subject to a strong, tilted magnetic field exhibits an insulator-metal transition tunable by tilt-angle, attributed to the transition from a canted antiferromagnetic (CAF)…
Helical quantum Hall Edge modes in bilayer graphene: a realization of quantum spin-ladders
Victoria Mazo, Chia-Wei Huang, Efrat Shimshoni +2
The rich phase diagram of quantum spin-ladder systems has attracted much attention in the theoretical literature. The progress in experimental realisations of this fascinating phys…
Opening of a Gap in Graphene Due to Supercell Potential: Group Theory Point of View
E. Kogan, M. Kaveh
We analyze in the framework of the space group theory the change of the dispersion law in grapenein the vicinity of the (former) Dirac points due to application of supercell potent…