Z. L. Mišković

High-energy plasmon spectroscopy of freestanding multilayer graphene

We present several applications of the layered electron gas model to electron energy loss spectroscopy of freestanding films consisting of

Origin of size-dependent photoluminescence decay dynamics in colloidal γ-Ga2O3 nanocrystals

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Ion channeling through carbon nanotubes

graphene layers in a scanning transmission electron microscope. Using a two-fluid model for the single-layer polarizability, we discuss the evolution of high-energy plasmon spectra with

Dynamic polarization of graphene by moving external charges: Random phase approximation

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Plasmon excitation in metal slab by fast point charge: The role of additional boundary conditions in quantum hydrodynamic model

and find good agreement with the recent experimental data for both multilayer graphene with

Brownian dynamics of charged particles in a constant magnetic field

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Wave spectra of two-dimensional dusty plasma solids and liquids

and thick slabs of graphite. Such applications of these analytical models help shed light on several features observed in the plasmon spectra of those structures, including the role of plasmon dispersion, dynamic interference in excitations of various plasmon eigenmodes, as well as the relevance of the bulk plasmon bands, rather than surface plasmons, in classifying the plasmon peaks.

Formation and rotation of two-dimensional Coulomb crystals in magnetized complex plasma

We studied size-dependent dynamics of defect-based photoluminescence of colloidal γ-Ga2O3 nanocrystals in the framework of the donor-acceptor pair model. Two theoretical models were developed based on relative positioning of donor and acceptor sites: (1) for random distribution of defects throughout the nanocrystal volume and (2) for surface segregation of defects. The results of the modeling indicate that defect sites are predominantly located in the vicinity of nanocrystal surfaces and that the density of defects increases with decreasing nanocrystal size. The donor Bohr radius obtained as a fitting parameter suggests an increase in the donor binding energy with decreasing nanocrystal size.

The donut and dynamic polarization effects in proton channeling through carbon nanotubes

Recent progress in theoretical modeling of ion channeling through carbon nanotubes is reviewed. Specific aspects of the high (GeV), medium (MeV), and low (keV) ranges of ion energy are discussed and contrasted. Conclusions are drawn in an attempt to assist in preparing experiments on this unique channeling system.

Channeling of protons through carbon nanotubes embedded in dielectric media

We evaluate the stopping and image forces on a charged particle moving parallel to a doped sheet of graphene by using the dielectric-response formalism for graphenes