Zobrazeno 1 - 10
of 75
pro vyhledávání: '"Jacek Cwik"'
Autor:
Natalia B. Kolchugina, N. Oliveira, Yurii S. Koshkid’ko, Małgorzata A. Małecka, Tetiana Romanova, Konstantin Nenkov, Alexandra Mikhailova, Jacek Cwik
Publikováno v:
Physical Review B. 103
In the present work, the structural, magnetic, and thermodynamic properties of ${\mathrm{Dy}}_{1\ensuremath{-}x}{\mathrm{Er}}_{x}{\mathrm{Ni}}_{2}$ $(x=0.25,\phantom{\rule{0.16em}{0ex}}0.5,\phantom{\rule{0.16em}{0ex}}0.75)$ Laves-phase intermetallics
Autor:
V. I. Val’kov, Alexey Mashirov, Sergey Shevyrtalov, Yu. S. Koshkid’ko, A. P. Sivachenko, Igor Shchetinin, A. V. Golovchan, E. T. Dilmieva, Alexander P. Kamantsev, Krzysztof Rogacki, Valeria Rodionova, V. Sampath, V. V. Koledov, Jacek Cwik, D. Kowalska, Vladimir G. Shavrov
Publikováno v:
Journal of Alloys and Compounds. 798:810-819
The magnetocaloric effect (MCE) in single crystals of MnAs compound was studied both experimentally and theoretically. Direct measurement of MCE showed that the adiabatic temperature change (ΔTad) in a magnetic field of 10 T was 15 K. But direct mea
Autor:
Vladimir Khovaylo, Alexey Mashirov, Jacek Cwik, Krzysztof Rogacki, Alexander P. Kamantsev, Victor Koledov, Dmitry S. Kuchin, Yurii S. Koshkid’ko, E. T. Dilmieva, Vladimir G. Shavrov
Publikováno v:
Journal of Magnetism and Magnetic Materials. 482:317-322
Recently the new scheme of layered composite with shape memory effect (SME) for thermal and magnetic actuation was suggested and proved to demonstrate the reversible actuation on micro- and nanoscale. The principles of magnetic field induced martensi
Publikováno v:
Acta Materialia. 173:27-33
Measurements of the low-temperature heat capacity performed for the polycrystalline Tb1-xDyxNi2 intermetallic compounds with x = 0.25, 0.5 and 0.75 enable us to determine their Debye temperatures and estimate the lattice, electron and magnetic contri
Autor:
Anil Aryal, Alexander Granovsky, Erkki Lähderanta, Jacek Cwik, Igor Dubenko, Sudip Pandey, Naushad Ali, Shane Stadler, Yury Koshkid’ko
Publikováno v:
IEEE Transactions on Magnetics. 55:1-4
The adiabatic temperature change (ATad) in Ni 45 Mn 43 CoSn 11 has been measured by a direct method in magnetic field changes up to 14 T. Large reversible magnetocaloric effects resulting in AT ad of about = -11 and 5 K have been observed for magneti
Publikováno v:
Acta Materialia. 161:331-337
The Tb0.2Gd0.8 single crystal magnetization, magnetic anisotropy and adiabatic temperature change ΔT dependencies on magnetic field and temperature have been studied in high magnetic fields (up to 14 T). In this work, we analyze experimental data wi
Autor:
Yurii S. Koshkid’ko, A. G. Savchenko, Jacek Cwik, Katerina Skotnicova, Miroslav Kursa, Mark V. Zheleznyi, Pavel A. Prokofev, Natalia B. Kolchugina, Nikolai A. Dormidontov, Vladimir P. Menushenkov, Gennadii S. Burkhanov
Publikováno v:
Crystals, Vol 10, Iss 518, p 518 (2020)
Crystals
Volume 10
Issue 6
Crystals
Volume 10
Issue 6
The Ce2Fe14B intermetallic, like Nd2Fe14B, has the tetragonal Nd2Fe14B-type structure (space group P42/mnm), in which Ce ions have a mixed-valence state characterized by the coexistence of trivalent 4f1 and tetravalent 4f0 electron states. Despite th
Publikováno v:
Journal of Alloys and Compounds. 769:588-596
The crystal structure, magnetic and thermodynamic properties of polycrystalline Tb1-xDyxNi2 intermetallic compounds with x = 0.25, 0.5 and 0.75 have been investigated. Experimental data on thermodynamic properties, i.e. the isothermal entropy change
Autor:
Shane Stadler, Naushad Ali, Sudip Pandey, Abdiel Quetz, Erkki Lähderanta, Anil Aryal, Yury Koshkid’ko, Alexander Granovsky, Jacek Cwik, Igor Dubenko, E. T. Dilmieva
Publikováno v:
Journal of Magnetism and Magnetic Materials. 459:98-101
Ni50Mn35In14.25B0.75 is a typical representative of the family of metamagnetic In-based Heusler alloys which shows large magnetocaloric effects generated from first order magnetostructural and ferromagnetic-paramagnetic transitions. For this alloy, a
Autor:
Yu. S. Koshkid’ko, Jacek Cwik, A. A. Lukin, Kateřina Skotnicová, V. V. Sitnov, G. S. Burkhanov, Natalia B. Kolchugina
Publikováno v:
Inorganic Materials: Applied Research. 9:509-516
Sintered Nd–Pr–Dy–Fe–B permanent magnets were prepared by a powder blending technique using mixtures consisting of strip-casting alloy (wt %) 24.0 Nd, 6.5 Pr, 0.5 Dy, 1.0 B, 0.2 Al, 65.8 Fe and 2 wt % DyH2 dysprosium hydride. After optimum he