84 citations · 142 across the 6 of their papers we have counts for
6 papers
Efficient Green Emission from Edge States in Graphene Perforated by Nitrogen Plasma Treatment
N N Kovaleva, D Chvostova, Z Potůček +10
Plasma functionalization of graphene is one of the facile ways to tune its doping level without the need for wet chemicals making graphene photoluminescent. Microscopic corrugation…
Broad-band dielectric response of BTZ-BCT piezoceramics: soft and central mode behaviour
S. Kamba, E. Simon, V. Skoromets +6
Dielectric properties of BTZ-BCT ceramics were probed in the frequency range from 10 Hz to 100 THz in a broad temperature range (10-900 K). Polar soft phonon observed in infrared s…
Ferroelectric and Incipient Ferroelectric Properties of a Novel Sr_(9-x)PbxCe2Ti2O36 (x=0-9) Ceramic System
Stanislav Kamba, Maxim Savinov, Frantisek Laufek +11
Sr_(9-x)PbxCe2Ti12O36 system is derived from the perovskite SrTiO3 and its chemical formula can be written as (Sr_(1-y)Pby)0.75Ce0.167TiO3. We investigated dielectric response of S…
Vibrational properties of hexagonal LiBC: Infrared and Raman spectroscopy
J. Hlinka, V. Zelezny, I. Gregora +5
The paper presents infrared reflectivity and micro-Raman scattering spectra of LiBC powder pellets. The experiment allowed assignment of frequencies of all infrared and Raman activ…
LiBC by polarized Raman spectroscopy: Evidence for lower crystal symmetry ?
J. Hlinka, I. Gregora, J. Pokorny +2
The paper presents polarized Raman scattering study on a few-micron-size crystallite of LiBC with natural faces. The experiment on as grown sample has revealed a four lattice modes…
Phonons in MgB2 by Polarized Raman Scattering on Single Crystals
J. Hlinka, I. Gregora, J. Pokorny +4
The paper presents detailed Raman scattering study of the unusually broad E2g phonon mode in MgB2 crystal. For the first time, it is shown by the polarized Raman scattering on few-…