174 citations · 987 across the 24 of their papers we have counts for
24 papers
Bismuth layer properties in the ultrathin Bi-FeNi multilayer films probed by spectroscopic ellipsometry
N. N. Kovaleva, D. Chvostova, O. Pacherova +6
Using wide-band (0.5-6.5 eV) spectroscopic ellipsometry we study ultrathin [Bi(0.6-2.5 nm)-FeNi(0.8,1.2 nm)]N multilayer films grown by rf sputtering deposition, where the FeNi lay…
Localization effects in the disordered Ta interlayer of multilayer Ta-FeNi films: Evidence from dc transport and spectroscopic ellipsometry study
N. N. Kovaleva, D. Chvostova, O. Pacherova +4
Using dc transport and wide-band spectroscopic ellipsometry techniques, we study localization effects in the disordered metallic Ta interlayer of different thickness in the multila…
Raman scattering study and lattice-dynamics calculations in YTiO3: Precursor of the magnetic phase transition in the phonon anomalies
N. N. Kovaleva, O. E. Kusmartseva, A. Maljuk
The origin of the low-temperature ferromagnetic instability in YTiO3 driven by the interplay between lattice, orbital, spin, and charge degrees of freedom is on the background of l…
Control of Mooij correlations at the nanoscale in the disordered metallic Ta - nanoisland FeNi multilayers
N. N. Kovaleva, F. V. Kusmartsev, A. B. Mekhiya +12
Localisation phenomena in highly disordered metals close to the extreme conditions determined by the Mott-Ioffe-Regel (MIR) limit when the electron mean free path is approximately…
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…
Optical evidence of quantum rotor orbital excitations in orthorhombic manganites
N. N. Kovaleva, K. I. Kugel, Z. Potucek +8
In magnetic compounds with Jahn-Teller (JT) ions (such as Mn3+ or Cu2+), the ordering of the electron or hole orbitals is associated with cooperative lattice distortions. There the…