A. V. Matveentsev

Krylov State Research Center

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O. V. Konstantinov

Institute of Mathematics

A. A. Rzhevsky

Krylov State Research Center

ВГ

В Г Булгакова

Krylov State Research Center

V. P. Evtikhiev

Ioffe Institute

S. A. Pozdnyakova

Krylov State Research Center

G. G. Zegrya

Ioffe Institute

V. V. Zalipaev

ITMO University

Andrey Lyalin

Hokkaido University

Walter Greiner

Frankfurt Institute for Advanced Studies

E. Yu. Kotel’nikov

Ioffe Institute

Cooperative Institutions

Ioffe Institute

Russian Academy of Sciences

Physico-Technical Institute

ITMO University

Krylov State Research Center

St Petersburg University

Tambov State Technical University

Physical and Technical Institute

State Optical Institute named after SI Vavilov

Peter the Great St. Petersburg Polytechnic University

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Electromagnetic Properties of Cold-Cure Silicone Mixtures Containing Multi-Walled Carbon Nanotubes

Advanced Materials & Technologies (2020)

А. Г. Ткачев N. R. Memetov R.A. Stolyarov N. A. Chapaksov А. В. Герасимова

Nanocomposite materials based on a cold-cure silicone mixture containing multi-walled carbon nanotubes were obtained. The concentration dependences of the radio-physical properties of materials were investigated. An increase in the efficiency of shielding electromagnetic radiation in the radio frequency range of wavelengths with increasing concentrations of multi-walled carbon nanotubes up to 10 wt. % was verified.

Carbon fibers

10.17277/amt.2020.03.pp.043-046

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Electromagnetic waves scattering from infinite periodic arrays of thin absorbing wires

V. V. Zalipaev A. V. Matveentsev A. V. Rzhevskiy

Resonance absorption of the electromagnetic waves reflected from the infinite perfectly conducting screen covered with different layered structures of thin absorbing wires is studied. In the first case a structure represents a set of planar infinite 1D arrays of parallel infinitely long absorbing thin wires. In the second case a single mesh consists of the infinite 2D array of finite in length absorbing thin wires. For both problems the quasi-periodic electromagnetic wave field involves the incident and the specular reflected from the screen two plane waves as well as the diffracted field which is constructed as a superposition of the interacting wave fields irradiated by the induced electric currents of thin wires. The approach that allows us to calculate the diffracted field is based on the method of the integral equations of the Pocklington type suitable in the case of the thin wire approximation. The key point in this study is the analysis of the frequency spectrum of the reflected energy flux. A few cases of resonance absorption of the wave reflected from the screen covered with the layered structures are demonstrated numerically. The described layered structures represent the simplest construction in the sense of technology of manufacturing radio-absorbing surfaces that could be used in radio-location to reduce the monostatic radar cross section of various metallic objects of large size.

Radar cross-section

10.1109/dd46733.2019.9016584

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Citations (1)

Theory of scattering of electromagnetic waves of the microwave range in a turbid medium

Technical Physics (2013)

O. V. Konstantinov A. V. Matveentsev

Molar absorptivity

Extinction (optical mineralogy)

10.1134/s1063784213020138

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The energy spectrum of charge carriers in a strongly oblate ellipsoidal quantum dot

Technical Physics Letters (2002)

G. G. Zegrya O. V. Konstantinov A. V. Matveentsev

Ellipsoid

Charge carrier

Oblate spheroid

Spheroid

10.1134/1.1505553

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Flexible Composite Radio-Wave Absorbers

Izvestiya vysshikh uchebnykh zavedenii Radiofizika (2021)

S. A. Pozdnyakova A. V. Matveentsev В Г Булгакова A. A. Rzhevsky

10.52452/00213462_2021_64_02_132

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ON THE APPLICABILITY OF THE JELLIUM MODEL TO THE DESCRIPTION OF ALKALI CLUSTERS

International Journal of Modern Physics E (2003)

A. V. Matveentsev Andrey Lyalin Ilia A. Solov’yov Andrey V. Solov’yov Walter Greiner

This work is devoted to the elucidation of the applicability of the jellium model to the description of alkali cluster properties. We compare the jellium model results with those derived within ab initio theoretical approaches and with experiments. On the basis of Hartree–Fock and local-density approximations we have calculated the binding energies per atom, ionization potentials, deformation parameters and optimized values of the Wigner–Seitz radii for neutral and singly charged sodium clusters with the number of atoms N ≤ 20. The characteristics calculated within the framework of the deformed jellium model are compared with the results derived from ab initio simulations of cluster electronic and ionic structure based on density functional theory and systematic post Hartree–Fock many-body perturbation theory accounting for all electrons in the system. The comparison performed demonstrates the great role of the cluster shape deformations in the formation cluster properties and quite reasonable level of applicability of the deformed jellium model. This elucidates the similarities of atomic cluster physics with the physics of atomic nuclei.

Jellium

10.1142/s0218301303001181

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Citations (20)

Simulation and study of material with diffuse scattering in the near- and mid-IR spectral ranges

Technical Physics (2016)

A. L. Glazov E. G. Guk A. V. Matveentsev B. G. Podlaskin А. А. Сухарев

Diffuse reflection

Reflection

10.1134/s1063784216090073

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