133 citations · 488 across the 35 of their papers we have counts for
6 papers · 1 filter
Ioffe-Regel criterion and viscoelastic properties of amorphous solids
D. A. Conyuh, Y. M. Beltukov
We show that viscoelastic effects play a crucial role in the damping of vibrational modes in harmonic amorphous solids. The relaxation of a given plane wave is described by a memor…
Tunneling magnetoresistance in ensembles of ferromagnetic granules with exchange interaction and random easy axes of magnetic anisotropy
Y. M. Beltukov, V. I. Kozub, A. V. Shumilin +1
We study the tunneling magnetoresistance in the ensembles of ferromagnetic granules with random easy axes of magnetic anisotropy taking into account the exchange interaction betwee…
A random matrix approach to the boson peak and Ioffe-Regel criterion in amorphous solids
D. A. Conyuh, Y. M. Beltukov
We present a random matrix approach to study general vibrational properties of stable amorphous solids with translational invariance using the correlated Wishart ensemble. Within t…
Polystyrene-based nanocomposites with different fillers: fabrication and mechanical properties
O. A. Moskalyuk, A. V. Belashov, Y. M. Beltukov +5
The paper presents a comprehensive analysis of elastic properties of polystyrene-based nanocomposites filled with different types of inclusions: small spherical particles (SiO2 and…
Anisotropic relaxation in NADH excited states studied by polarization-modulation pump-probe transient spectroscopy
Ioanna A. Gorbunova, Maxim E. Sasin, Yaroslav M. Beltukov +2
We present the results of experimental and theoretical studies of fast anisotropic relaxation and rotational diffusion in the first electron excited state of biological coenzyme NA…
Relative variations of nonlinear elastic moduli in polystyrene-based nanocomposites
A. V. Belashov, Y. M. Beltukov, O. A. Moskalyuk +1
In this paper we apply the methodology based on the analysis of changes in acoustic wave velocities under static stress for measurements of the third-order elastic moduli in three…