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Your search keyword '"Korenistov, P. S."' showing total 18 results
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18 results on '"Korenistov, P. S."'

1. Magnetic order and electronic transport properties in the Mn$_3$Al compound: the role of the structural state

Author

Marchenkov, V. V., Irkhin, V. Yu., Marchenkova, E. B., Semiannikova, A. A., and Korenistov, P. S.

Subjects
Condensed Matter - Strongly Correlated Electrons, Condensed Matter - Materials Science
Abstract

Electronic transport and magnetic properties of bulk and rapid melt quenched samples of the Mn$_3$Al Heusler alloy were studied. A correlation between the magnetic and structural states was established. For a cast sample, there is no ferromagnetic moment, and the behavior of the magnetic susceptibility (break at low temperatures and the Curie-Weiss law with high values of the paramagnetic Curie temperature) indicates a frustrated antiferromagnetic state. At the same time, for a rapid melt quenched sample, a ferrimagnetic state is observed with a moment close to compensation. The results of measurements of the electrical resistivity and the Hall effect evidence as well in favor of the implementation of these magnetic states., Comment: 8 pages, pdf only

Published
2023
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3. Electronic, magnetic and galvanomagnetic properties of Co-based Heusler alloys: possible states of a half-metallic ferromagnet and spin gapless semiconductor

Author

Semiannikova, A. A., Perevozchikova, Yu. A., Irkhin, V. Yu, Marchenkova, E. B., Korenistov, P. S., and Marchenkov, V. V.

Subjects
Condensed Matter - Materials Science
Abstract

Parameters of the energy gap and, consequently, electronic, magnetic and galvanomagnetic properties in different X$_2$YZ Heusler alloys can vary quite strongly. In particular, half-metallic ferromagnets (HMFs) and spin gapless semiconductors (SGSs) with almost 100% spin polarization of charge carriers are promising materials for spintronics. The changes in the electrical, magnetic and galvanomagnetic properties of the Co$_2$YSi (Y = Ti, V, Cr, Mn, Fe) and Co$_2$MnZ Heusler alloys (Z = Al, Si, Ga, Ge) in possible HMF and/or SGS states were followed and their interconnection was established. Significant changes in the values of the magnetization and residual resistivity were found. At the same time, the correlations between the changes in these electronic and magnetic characteristics depending on the number of valence electrons and spin polarization are observed., Comment: 10 pages

Published
2021
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5. The Electrical Resistivity, Magnetic, and Galvanomagnetic Properties of a Cast and Rapid Melt Quenched Mn3Al Heusler Alloy.

Author

Marchenkov, V. V., Irkhin, V. Yu., Semiannikova, A. A., Korenistov, P. S., and Marchenkova, E. B.

Subjects
HEUSLER alloys, ELECTRICAL resistivity, MAGNETIC properties, METAL quenching, MELTING
Abstract

The electrical resistivity, magnetic, and galvanomagnetic properties of the cast and rapid melt quenched Mn3Al Heusler alloy have been studied. Rapid melt quenching was found to result in changing the microstructure of the Mn3Al alloy, which leads to substantial changes in its electronic transport and magnetic properties. It was suggested that for the cast and rapid melt quenched Mn3Al alloy frustrated antiferromagnetic and almost compensated ferrimagnetic state could appear, respectively. It is shown that the preparation and treatment of the Mn3Al compound plays a substantial role in the formation of its electronic and magnetic characteristics. [ABSTRACT FROM AUTHOR]

Published
2023
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6. Magnetic and Electrical Properties of Co2MnZ (Z = Al, Si, Ga, Ge, Sn) Heusler Compounds.

Author

Semiannikova, A. A., Perevozchikova, Yu. A., Korenistov, P. S., Marchenkova, E. B., Korolev, A. V., and Marchenkov, V. V.

Abstract

Temperature dependences of electrical resistivity of Co2MnZ (Z = Al, Si, Ga, Ge, Sn) Heusler alloys were measured in a temperature range of 78–300 K; their magnetization was measured at 5 and 300 K in fields up to 30 kOe. It was found that, for the Co2MnAl and Co2MnGa alloys, the Mooij rule [Mooij J.H. Phys. Stat. Sol. (a). 1973. V. 17. P. 521] does not hold. A correlation between electronic and magnetic characteristics of the Co2MnZ alloys and atomic number of element Z is found. [ABSTRACT FROM AUTHOR]

Published
2022
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7. Electrical resistance of Ni-=SUB=-42+x-=/SUB=-Mn-=SUB=-47-x-=/SUB=-Sn-=SUB=-11-=/SUB=- alloys

Author

null Emelyanova S. M., null Perevalova A. N., null Korenistov P. S., null Patrakov E. I., null Chistyakov V. V., and null Volkova N. V.

Abstract

The electrical resistance and structure of Ni42+xMn47-xSn11 alloys have been studied; where x=0, 1, 2, 3, 4, At room temperature, Ni42+xMn47-xSn11 alloys are ordered in the cubic L21 Ni2MnSn structure characteristic of Heusler alloys. The phase transition between the cubic austenite phase and martensite with lower symmetry, characteristic of ferromagnetic non-stoichiometric Heusler alloys, is observed at temperatures below room temperature. It was found that the partial replacement of Mn atoms by Ni atoms leads to an increase in the phase transition temperatures and to their shift to room temperature. Keywords: Heusler alloys, electrical resistance, phase transition.

Published
2022

16. Electronic properties of WTe2 and MoTe2 single crystals

Author

Domozhirova, A N, primary, Makhnev, A A, additional, Shreder, E I, additional, Naumov, S V, additional, Lukoyanov, A V, additional, Chistyakov, V V, additional, Huang, J C A, additional, Semiannikova, A A, additional, Korenistov, P S, additional, and Marchenkov, V V, additional

Published
2019
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18. Experimental observation of anomalies in the electrical, magnetic, and galvanomagnetic properties of cobalt-based Heusler alloys with variation of transition elements,Экспериментальное наблюдение аномалий электрических, магнитных и гальваномагнитных свойств сплавов Гейслера на основе кобальта при изменении содержания переходных элементов

Author

Perevozchikova, Yu A., Semiannikova, A. A., Domozhirova, A. N., Terentyev, P. B., Marchenkova, E. B., Patrakov, E. I., Michael Eisterer, Korenistov, P. S., and Marchenkov, V. V.

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