Splashing transients of 2D plasmons launched by swift electrons

Friday March 3rd, 2017 Hrvoje Buljan 0

Launching of plasmons by swift electrons has long been used in electron energy–loss spectroscopy (EELS) to investigate the plasmonic properties of ultrathin, or two-dimensional (2D), electron systems. However, the question of how a swift electron generates plasmons in space and time has never been answered. We address this issue by […]

Ab initio study of electronic excitations and the dielectric function in molybdenum disulfide monolayer

Monday November 14th, 2016 leo 0

The propagator of the induced dynamically screened Coulomb interaction is calculated for the monolayer. The energy-loss rate of a point charge placed near the monolayer is calculated (using the spatial resolution of the in the direction perpendicular to the plane) and successfully compared with very recent electron-energy-loss spectroscopy measurements of […]

Self-Organization and Forces in the Mitotic Spindle

Friday September 16th, 2016 Ivan Balog 0

ABSTRACT: At the onset of division, the cell forms a spindle, a precise self-constructed micromachine composed of microtubules and the  associated proteins, which divides the chromosomes between the two nascent daughter cells. The spindle arises from self-organization of  microtubules and chromosomes, whose different types of motion help them explore the […]

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