Search Results - "Ryabchenko, S.M"

Mechanisms of limitation and nature of field dependence of critical current in HTS epitaxial YBaCuO films by Pan, V.M., Pashitskii, E.A., Ryabchenko, S.M., Komashko, V.A., Pan, A.V., Dou, S.X., Semenov, A.V., Tretiatchenko, C.G., Fedotov, Yu.V.

“…Magnetic field and temperature dependencies of the critical current density, J/sub c/(H/spl par/c, T) were measured by SQUID-magnetometry, ac magnetic…”
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Nickel-zinc spinel nanoferrites: Magnetic characterization and prospects of the use in self-controlled magnetic hyperthermia by Tovstolytkin, A.I., Kulyk, M.M., Kalita, V.M., Ryabchenko, S.M., Zamorskyi, V.O., Fedorchuk, O.P., Solopan, S.O., Belous, A.G.

“…•Effect of Zn substitution on magnetic parameters of nickel nanoferrites is studied.•AC field induced heating efficiency decreases with increasing Zn…”
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Unusual magnetic and calorimetric properties of lanthanum-strontium manganite nanoparticles by Tovstolytkin, A.I., Lytvynenko, Ya.M., Bodnaruk, A.V., Bondar, O.V., Kalita, V.M., Ryabchenko, S.M., Shlapa, Yu.Yu, Solopan, S.O., Belous, A.G.

“…•Magnetic and calorimetric properties of LSMO nanoparticles have been studied.•A mechanism of AC field-induced heat generation has been elucidated.•The ways to…”
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Hysteresis, critical fields and superferromagnetism of the film with perpendicular anisotropy by Kalita, V.M., Kulyk, M.M., Ryabchenko, S.M.

“…This paper is focused on the analysis of hysteresis and critical phenomena of magnetization reversal of superferromagnetic (SFM) state in nanogranular (NG)…”
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On Collective Interparticle Effects Underlying Unusual Coercive Behavior of Ensembles of Substituted Manganite Nanoparticles by Tovstolytkin, A.I., Nakonechna, O.I., Sharay, I.V., Bodnaruk, A.V., Bondar, O.V., Kalita, V.M., Ryabchenko, S.M., Shlapa, Y.Y., Solopan, S.O., Belous, A.G.

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Critical magnetization and hysteresis of nanogranular films with perpendicular anisotropy by Ryabchenko, S. M., Kalita, V. M.

“…The magnetic-field dependences of the stability boundaries of the nonequilibrium magnetic states that exist in a nanogranular film with perpendicular…”
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Manganite Nanoparticles as Promising Heat Mediators for Magnetic Hyperthermia: Comparison of Different Chemical Substitutions by Tovstolytkin, A.I., Shlapa, Yu.Yu, Solopan, S.O., Bodnaruk, A.V., Kulyk, M.M., Kalita, V.M., Zamorskyi, V.O., Ryabchenko, S.M., Belous, A.G.

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Influence of the demagnetizing factor on the magnetization of an ensemble of Stoner-Wohlfarth particles by Kalita, V. M., Timopheev, A. A., Ryabchenko, S. M.

“…The influence of the demagnetizing factor on the coercivity of a sample of oriented uniaxial Stoner-Wohlfarth particles is investigated in the approximation of…”
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Growth-induced perpendicular anisotropy of grains in Co-Al-O nanogranular ferromagnetic films by Timopheev, A. A., Ryabchenko, S. M., Kalita, V. M., Lozenko, A. F., Trotsenko, P. A., Stognei, O. V., Sitnikov, A. V.

“…This paper reports on the results of the magnetostatic measurements for Co-Al-O nanogranular films over a wide range of concentrations of the ferromagnetic…”
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Magnetic field dependence of the critical current density in thin epitaxial HTS YBa 2Cu 3O 7− δ films with dislocation low-angle domain boundaries by Fedotov, Yu.V., Ryabchenko, S.M., Pashitskii, E.A., Semenov, A.V., Vakaryuk, V.I., Flis, V.S., Pan, V.M.

“…Highly biaxially oriented YBa 2Cu 3O 7− δ (YBCO) films exhibit critical current densities, J c, two orders of magnitude higher than any sort of bulk samples…”
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Magnetic field dependence of the critical current density in thin epitaxial HTS YBa2Cu3O7−δ films with dislocation low-angle domain boundaries by Fedotov, Yu.V., Ryabchenko, S.M., Pashitskii, E.A., Semenov, A.V., Vakaryuk, V.I., Flis, V.S., Pan, V.M.

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Exactly solvable model for carrier-induced paramagnetic-ferromagnetic phase transition in diluted magnetic semiconductors by Semenov, Yu.G, Ryabchenko, S.M

“…We present a model that permits to obtain and exactly describe the paramagnetic-ferromagnetic phase transition induced by carrier-ion exchange interaction and…”
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Carrier-ion exchange interactions in crystals Cd 1− xCo xTe by Abramishvily, V.G., Komarov, A.V., Ryabchenko, S.M., Savchuk, A.I., Semonov, Yu.G.

“…Magnetoreflectivity investigations of the Cd 1− x Co x Te crystals with x = 0.004 were carried out in the region of 1 s exciton in a magnetic field up to 3.5 T…”
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Combination of Hartree and Ritz approaches for problem of excitons in semiconductor quantum wells. Additional exciton states by Kyrychenko, F.V, Ryabchenko, S.M, Semenov, Yu.G

“…A combination of Hartree and Ritz approaches is applied to the problem of exciton confined in a semiconductor quantum well (QW). The multiplicative…”
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Optical polarization anisotropy of quantum wells induced by a cubic anisotropy of the host material by Ryabchenko, S.M., Semenov, Yu.G., Komarov, A.V., Wojtowicz, T., Cywiński, G., Kossut, J.

“…The optical polarization anisotropy of quantum wells (QW) in structures fabricated from materials with cubic symmetry due to the anisotropic character of the…”
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Field behavior of the critical current in quasi-single-crystalline YBCO films by Fedotov, Yu.V, Pashitskii, E.A, Ryabchenko, S.M, Semenov, A.V, Pan, A.V, Dou, S.X, Tretiatchenko, C.G, Komashko, V.A, Cherpak, Yu.V, Pan, V.M

“…Magnetic field, angular and temperature dependencies of the critical current density were measured by SQUID-magnetometry, ac magnetic susceptibility, and…”
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Carrier-ion exchange interactions in crystals Cd1-xCoxTe by ABRAMISHVILY, V. G, KOMAROV, A. V, RYABCHENKO, S. M, SAVCHUK, A. I, SEMENOV, YU. G

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