Alexey V. Mashirov

Intensification contact heat transfer of the mechanical thermal switch in experimental Brayton cycle of a cryogenic magnetic refrigerator based on GdNi2 alloy

Колесов Константин Андреевич, Irek I. Musabirov, Iliya S. Gerasimov, Aleksandr S. Kuznetsov et autres

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Study of the electrical conductivity of calcium sulfate dihydrate (CaSO4·2H2O) and its potential applications in electronics

Василий Сергеевич Захвалинский, Т. Б. Никуличева, Alexey V. Mashirov, I. S. Nikulin et autres

This work is devoted to a comprehensive study of the structural and electrophysical properties of citrogypsum, a high-tonnage byproduct of biochemical citric acid production. Compacted test samples were fabricated via cold isostatic pressing. The chemical and phase compositions of the investigated anthropogenic …

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Anomalous Hall Effect in Epitaxially Strained Thin Films of Strontium Iridate

Georgy D. Ulev, G. A. Ovsyannikov, K. Y. Constantinian, A. M. Petrzhik et autres

Low-temperature magnetotransport of thin epitaxial films of the topological semimetal SrIrO 3 grown on (110)Pb(Mg 1/3 Nb 2/3 )O 3 –PbTiO 3 (PMN–PT) and (001)SrTiO 3 substrates, which induce tensile (ε = +1.5%) and compressive (ε = –1.4%) strains, respectively, has been …

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Gas-gap thermal switch for a cryogenic magnetic refrigerator based on GdNi2

К.А. Колесов, О. В. Белова, S.S. Morkovin, Irek I. Musabirov et autres

This article studies the operating parameters of a gas-gap thermal switch in a cryogenic magnetic refrigerator based on a superconducting magnet cryostat. Helium was used as the heat exchange gas and a magnetocaloric alloy disk made of GdNi2 and a copper cylinder …

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Features of topological properties of single crystals of the solid solution (Cd0.6Zn0.36Mn0.04)3As2

Василий Сергеевич Захвалинский, Т. Б. Никуличева, Alexey V. Mashirov, Борис Аронович Аронзон et autres

Single crystals of a solid solution (Cd1-x-yZnxMny)3As2 (x + y = 0.4; y = 0.04) were obtained by the modified Bridgmen method Dirac semimetals Cd3As2. All experimental samples (Cd0.6Zn0.36Mn0.04)3As2 had a tetragonal crystal structure (α''-Cd3As2), spatial group P42/nmc, at room temperature. The …

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Intensification thermal contact conductance of the mechanical thermal switch in experimental Brayton cycle of a cryogenic magnetic refrigerator based on GdNi2 alloy

Колесов Константин Андреевич, Irek I. Musabirov, Iliya S. Gerasimov, Alexander S. Kuznetsov et autres

Structure and Magnetic Properties of Vanadium-Doped Heusler Ni-Mn-In Alloys

Д. Д. Кузнецов, Е. И. Кузнецова, Alexey V. Mashirov, Alexander P. Kamantsev et autres

The crystal structure, texture, martensitic transformation, and magnetic properties of magnetic shape-memory Heusler alloys of Ni51−xMn33.4In15.6Vx (x = 0; 0.1; 0.3; 0.5; 1) were investigated. Experimental studies of the magnetic properties and meta-magnetostructural transition (martensitic transition—MT) confirm the main sensitivity of the …

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Laser Interference Lithography Treatment of the Surfaces for Enhanced Heat Transfer in Magnetic Cooling

К.А. Колесов, Victor Koledov, Alexey V. Mashirov, Zhengxun Song et autres

The development of solid-state cooling systems based on the magnetocaloric effect is very attractive for achieving compactness and high efficiency of the refrigerator. The modified surface structure of the heat switch in cryogenic systems may be critical for achieving high heat flow …

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Topological properties of single crystals of solid solution (Cd1-xZnx)3As2 composition X = 0.093

Василий Сергеевич Захвалинский, Александр Васильевич Борисенко, Alexey V. Mashirov, А. В. Кочура et autres

The value of the cyclotron mass is determined in single crystals of a solid solution (Cd0.907Zn0.093)3As2 according to the results of a study of Shubnikov-de Haase oscillations in a transverse magnetic field. We compared the Shubnikov and Hall parameters of charge carriers. …

Linear dispersion of dirac fermions in a single crystal of a solid solution (Cd1-x-yZnxMny)3As2 composition x = 0.29, y = 0.01

Василий Сергеевич Захвалинский, Александр Васильевич Борисенко, Alexey V. Mashirov, А. В. Кочура et autres

The value of the effective mass mc(0)/m0 is determined in single crystals of a solid solution (Cd0.7Zn0.29Mn0.01)3As2 according to the results of a study of Shubnikov-de Haase oscillations in a transverse magnetic field. We compared the Shubnikov and Hall parameters of charge …

Dirac semimetal strontium iridate thin films with strong spin-orbit interaction for magnetic heterostructures

G. A. Ovsyannikov, G. D. Ulev, N. V. Dubitskiy, Karen I. Constantinian et autres

Влияние ориентации монокристаллических игл NiSb на электропроводность монокристаллов композита (InSb)98:2 - (NiSb)1:8

Василий Сергеевич Захвалинский, Александр Васильевич Борисенко, Alexey V. Mashirov, А. В. Кочура et autres

Целью работы является проведение исследования электропроводности композитных монокристаллов (InSb)98.2 – (NiSb)1.8. Модифицированным методом Бриджмена были получены монокристаллы композита эвтектической системы (InSb)98.2 – (NiSb)1.8. Используя сканирующий электронный микроскоп JSM-6610LV (Jeol), был определен состав и однородности распределения элементов методом энергодисперсионной рентгеновской спектроскопии. Определены интервалы …