Petr Aleksandrovich Polyakov

225 Years Since the Voltaic Pile Discovery

Pavel BUTYRIN, Petr Aleksandrovich Polyakov, Feliks SHAKIRZYANOV

The article considers the discovery of a new chemical energy source, the Voltaic column, by Italian scientist Alessandro Volta 225 years ago. The article provides biographical information about the scientist, evaluates his contribution to science, discusses the influence of Galvani's experiments on …

Investigation of the Coherent Remagnetization Regions of Ferrite–Garnet Films with Planar Anisotropy

G. M. Nikoladze, A. V. Matyunin, Petr Aleksandrovich Polyakov

Abstract A theoretical and experimental investigations are performed for regions of the coherent quasi-stationary remagnetization of ferrite–garnet films with planar anisotropy under the influence of an external magnetic field rotating in the plane of each film. The films are found to have …

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Magnetic Field of a Uniformly Magnetized Microstrip with Sinusoidal Relief

M. A. Piatakov, M. L. Akimov, Petr Aleksandrovich Polyakov

Abstract Results are presented from numerical calculations of the strength of a magnetic field generated by a magnetic film of finite width, a specified thickness, and infinitely long length (a micromagnetic strip with a wave-like harmonic surface). The field is calculated with …

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Effect of Weak Magnetic Field Pulses on the Domain Structure and Magnetic Parameters of Fe73(SiBNb)27 Alloys with Additions of Copper

Tatiana P. Kaminskaya, Petr Aleksandrovich Polyakov, М. А. Степович, М. Н. Шипко et autres

Abstract The authors study the effect magnetic pulse treatment has on the magnetic structure of foil made of amorphous alloy Fe73(SiBNb)27 with additions of 1% copper. The foil is obtained via ultra-fast cooling while spraying the melt on a rapidly rotating copper …

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Features of Magnetization Reversal in Magnetic Layers of a Synthetic Antiferromagnet in a Spin-Tunnel Element

D. V. Vasilyev, Petr Aleksandrovich Polyakov, В. В. Амеличев, D. V. Kostyuk et autres

A theoretical model of a spin-tunnel element containing a synthetic antiferromagnet is developed, based on the concept of the coherent rotation of magnetization vectors of ferromagnetic nanolayers under the influence of an external magnetic field. The obtained field dependences $$\cos ({{\theta }_{r}}(h))$$ …

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The Interaction Force between the Halves of a Uniformly Polarized Ellipsoidal Dielectric

Oleg P. Polyakov, Petr Aleksandrovich Polyakov

The article deals with a theoretical study of the ponderomotive coupling force between the components of uniformly polarized ellipsoid-shaped dielectric bodies. A new analytical solution to the problem of the interaction between two halves of a uniformly polarized dielectric ellipsoid of revolution …

Surface Deformation Effect in the In–Ga–Sn Liquid Metal System with Hemispherical Electrodes

I O Teplyakov, S. V. Kiselyova, K G Kubrikov, Ksaverii Yu. Malyshev et autres

Abstract A system with a eutectic In–Ga–Sn alloy between hemispherical electrodes is considered. The deformation of the surface of the liquid conductor under the action of an electromagnetic force is investigated. Experimental and calculated values of the current at which the liquid …

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The influence of inhomogeneity in the distribution of electric current and magnetization on the characteristics of a barber-pole magnetic sensor

V. S. Shevtsov, Petr Aleksandrovich Polyakov

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Magnetic Interaction of Films with a Harmonic Surface Profile

M. A. Piatakov, M. L. Akimov, Petr Aleksandrovich Polyakov

Abstract We presented an analytical solution to the magnetostatic problem of finding the magnetic field strength of a film with a harmonic surface profile, as well as a relation for the scalar magnetic potential of this magnetic field. The energies and interaction …

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Compensation of Magnetostatic Interaction between Magnetic Layers in a Spin Tunnel Element

D. V. Vasilyev, Oleg P. Polyakov, Petr Aleksandrovich Polyakov, В. В. Амеличев et autres

Abstract A method is proposed to significantly reduce the influence of the magnetostatic magnetic field of the fixed magnetic layer on the free layer of a spin-tunnel element. The method is based on the use of a free layer the size of …

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On the Domain Structure of Ferrite–Garnet Films with Complex Anisotropy under Quasi-Stationary Magnetization Reversal

A. V. Matyunin, G. M. Nikoladze, Petr Aleksandrovich Polyakov

Abstract Results are presented from an experimental and theoretical analysis of the quasi-stationary magnetization reversal of ferrite–garnet films with complex anisotropy. A magneto-optical setup based on the Faraday effect is used to determine conditions that allow reduction of the area of a …

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Characteristics of the Flow of an Electric Current in a Two-Dimensional Periodic Element of a Magnetic Sensor

V. S. Shevtsov, Petr Aleksandrovich Polyakov

Abstract A solution is presented for a non-standard boundary value problem using Laplace’s equation with mixed Dirichlet–Neumann boundary conditions in a two-dimensional element with periodically alternating media that have different conductivities. The distribution of current lines and equipotentials is found for different …

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