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72 papers · 1 filter
Surface plasmon enhanced absorption and suppressed transmission in periodic arrays of graphene ribbons
A. Yu. Nikitin, F. Guinea, F. J. Garcia-Vidal +1
Resonance diffraction in the periodic array of graphene micro-ribbons is theoretically studied following a recent experiment [L. Ju et al, Nature Nanotech. 6, 630 (2011)]. Systemat…
Stability of the Ni sites across the pressure-induced metallization in YNiO3
A. Y. Ramos, C. Piamonteze, H. C. N. Tolentino +7
The local environment of nickel atoms in Y NiO3 across the pressure- induced insulator to metal (IM) transition was studied using X-ray absorption spectroscopy (XAS) supported by a…
A random laser tailored by directional stimulated emission
M. Leonetti, C. Conti, C. Lopez
A disordered structure embedding an active gain material and able to lase is called random laser (RL). The RL spectrum may appear either like a set of sharp resonances or like a sm…
AC Josephson effect in finite-length nanowire junctions with Majorana modes
Pablo San-Jose, Elsa Prada, Ramon Aguado
It has been predicted that superconducting junctions made with topological nanowires hosting Majorana bound states (MBS) exhibit an anomalous 4π-periodic Josephson effect. Finding…
Quenching of the quantum Hall effect in graphene with scrolled edges
Alessandro Cresti, Michael M. Fogler, Francisco Guinea +2
Edge nanoscrolls are shown to strongly influence transport properties of suspended graphene in the quantum Hall regime. The relatively long arc length of the scrolls in combination…
Ab initio electronic and geometrical structures of tripotassium-intercalated phenanthrene
P. L. de Andres, A. Guijarro, J. A. Verges
The geometrical and electronic structure of tripotassium doped phenanthrene, \ce{K3C14H10}, have been studied by first-principles density functional theory. The main effect of pota…