30 citations · 107 across the 11 of their papers we have counts for
11 papers
Generation of slow intense optical solitons in a resonance photonic crystal
Igor V. Mel'nikov, Anton Knigavko, J. Stewart Aitchison +1
We demonstrate interesting and previously unforeseen properties of a pair of gap solitons in a resonant photonic crystal which are predicted and explained in a physically transpare…
Divergence of the orbital nuclear magnetic relaxation rate in metals
A. Knigavko, B. Mitrovic, K. V. Samokhin
We analyze the nuclear magnetic relaxation rate due to the coupling of nuclear spin to the orbital moment of itinerant electrons in metals. In the clean non--intera…
Observation of phonon structure in electron density of states of normal metal
A. Knigavko, J. P. Carbotte, F. Marsiglio
Within standard treatments of the interacting electron--phonon system the electron density of states (EDOS) shows no sign of the phonons when the system is in the normal state. On…
Elastic anomalies in HoNi2B2C single crystals
V. D. Fil, A. Knigavko, A. N. Zholobenko +2
We have measured temperature and magnetic field dependencies of the sound velocities and the sound attenuation in HoNi2B2C single crystals. The main result is a huge softening the…
Optical sum increase due to electron undressing
A. Knigavko, J. P. Carbotte, F. Marsiglio
For a system with a fixed number of electrons, the total optical sum is a constant, independent of many-body interactions, of impurity scattering and of temperature. For a single b…
Inversion of ARPES measurements in high Tc cuprates
S. Verga, A. Knigavko, F. Marsiglio
Recent energy dispersion measurements in several families of the hole-doped copper oxides have revealed a kink in the energy vs. momentum relation. These have tentatively been iden…