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Spall Strength of Shock-Heated Hafnium and the Equation of State of Its Polymorphic Modifications
Pleiades Publishing Ltd - Tập 61 - Trang 1437-1443 - 2019
A. M. Molodets, A. A. Golyshev
We determined the spall strength of hafnium heated by a loading shock wave to thousands of degrees and subjected to transformations into denser polymorphic modifications. To achieve this goal, the following tasks were solved. The pressure profiles at the interface between the sample and soft buffer material in the spall experiments with flat, one-dimensional loading are measured. The equations of ... hiện toàn bộ
Variability of the resulting microdeformation field in the Zn1 – xV x Se crystals (0.01 ≤ x ≤ 0.10)
Pleiades Publishing Ltd - Tập 60 Số 1 - Trang 49-59 - 2018
Maksimov, V. I., Maksimova, E. N., Surkova, T. P.
A detailed neutronographic study of the bulk ZnSe crystals doped with vanadium up to the content commensurate with the solubility limit in a semiconductor matrix has been carried out for the first time at room temperature. The data that characterize nonuniformly-deformed states based on the cubic structural modification of the II–VI compounds are obtained. A simplified analysis of the broadening p... hiện toàn bộ
Raman scattering in monocrystal Bi3B5O12
Pleiades Publishing Ltd - Tập 43 - Trang 1655-1658 - 2001
A. V. Egorysheva, V. I. Burkov, V. S. Gorelik, Yu. F. Kargin, V. V. Koltashev, V. G. Plotnichenko
Raman spectra of a Bi3B5O12 monocrystal are investigated for the first time and compared with the Raman spectra of crystals α-Bi2O3 and Bi12SiO20. The most intensive lines observed in the Raman spectrum of Bi3B5O12 are identified. Promising prospects of use of Bi3B5O12 crystals as SRS converters of radiation are shown.
Discrete energy spectrum of nonlinear spin ensembles in the ferrimagnet K0.4[Cr(CN)6][Mn(R/S)-pn](R/S)-pnH0.6
Pleiades Publishing Ltd - Tập 59 - Trang 70-75 - 2017
A. D. Talantsev, M. V. Kirman, R. B. Morgunov
Series of spontaneous magnetization jumps have been observed on the background of a continuous relaxation of the magnetic moment of a molecular ferrimagnet in a constant magnetic field. A statistical analysis of the set of data has demonstrated the presence of at least two modes in the distribution of magnetization reversal jumps over their amplitude. It has been found that the number of modes in ... hiện toàn bộ
Magnetic resonance of the M x Mn1 − x S compounds (M = Cu, Cr)
Pleiades Publishing Ltd - Tập 54 - Trang 2208-2211 - 2012
A. M. Vorotynov, G. M. Abramova, V. V. Sokolov, O. V. Vorotynova
Cation-substituted manganese monosulfide M x Mn1 − x S (M = Cu, Cr) has been investigated using the electron paramagnetic resonance method. The temperature and concentration dependences of the width and shape of the magnetic resonance line have been considered using the Van Vleck method of moments. It has been shown that, if the Mn2+ ions are substituted by the copper and chromium ions, the change... hiện toàn bộ
Antiferromagnet-ferromagnet transition in α-MnxS manganese sulfides
Pleiades Publishing Ltd - Tập 43 - Trang 493-495 - 2001
G. A. Petrakovskii, L. I. Ryabinkina, G. M. Abramova, D. A. Velikanov, A. F. Bovina
Off-stoichiometric manganese monosulfides α-MnxS (1≤x≤1.25) are synthesized, and their crystal structure and magnetic properties are studied in the 4.2-to 300-K range. The compounds have a NaCl fcc lattice. Increasing the manganese ion concentration x in the antiferromagnetic semiconductors α-MnxS is found to result in concentration-(x c ∼ 1.05) and temperature-driven (T c ∼ 50 K) magnetic transit... hiện toàn bộ
Electronic Structure of GdCuGe Intermetallic Compound
Pleiades Publishing Ltd - Tập 60 - Trang 631-633 - 2018
A. V. Lukoyanov, Yu. V. Knyazev, Yu. I. Kuz’min
The electronic structure of GdCuGe intermetallic compound has been studied. Spin-polarized energy spectrum calculations have been performed by the band method with allowance for strong electron correlations in the 4f-shell of gadolinium ions. Antiferromagnetic ordering of GdCuGe at low temperatures has been obtained in a theoretical calculation, with the value of the effective magnetic moment of g... hiện toàn bộ
Resonances of the Spatial Distribution of Dislocations upon Interaction with the Structural Order Parameter
Pleiades Publishing Ltd - Tập 60 Số 7 - Trang 1358-1362 - 2018
Yu. D. Zavorotnev, A. Yu. Zakharov, Л. С. Метлов
Morphological transition from the Euclidean to the fractal shape of the Lüders band in the aluminum-magnesium alloy AMg6
Pleiades Publishing Ltd - Tập 53 - Trang 887-895 - 2011
A. A. Shibkov, A. E. Zolotov, M. A. Zheltov, A. A. Denisov
The spatio-temporal structure of the Lüders band in artificially aged and recrystallized AMg6 alloys deformed under uniaxial tension at a constant stress rate = const has been investigated using high-speed video recording. A kinetic morphological transition has been revealed between the Euclidean and fractal shapes of the Lüders band due to a transformation of the initial microstructure of the all... hiện toàn bộ
Quasi-solitonic propagation modes of two-component acoustic video pulses in a paramagnetic crystal
Pleiades Publishing Ltd - Tập 43 - Trang 2051-2059 - 2001
S. V. Voronkov, S. V. Sazonov
Nonlinear propagation of longitudinal-transverse acoustic pulses down to a length of one cycle (video pulses) in a low-temperature paramagnetic crystal in the direction parallel to an external magnetic field is investigated theoretically. The case of a crystal with paramagnetic impurity ions with effective S=1/2 spin is considered. It is shown that, due to spin-phonon interaction, two-component ac... hiện toàn bộ
Tổng số: 6,809   
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