Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Valentin Mitrofanov"'
Publikováno v:
Journal of Alloys and Compounds. 751:96-106
Structural and magnetic properties of the compositions (La 0.7 Pr 0.3 ) 0.8 Sr 0.2 Mn 0.9 Ti 0.1 O 3±δ prepared at different oxygen partial pressures were investigated over a wide temperature range. The temperatures of phase structural transitions
Autor:
Olga A. Fedorova, A.M. Murzakaev, G. A. Kozhina, A. V. Fetisov, Valentin Mitrofanov, Svetlana Estemirova
Publikováno v:
Journal of Alloys and Compounds. 864:158816
The nanograin polycrystalline Nd1−xCaxMnO3±δ (x = 0; 0.15; 0.25) with orthorhombic structure were obtained by mechanical activation. X-ray diffraction analysis and transmission electron micrographs showed that the average crystallite size is in t
Publikováno v:
Journal of Magnetism and Magnetic Materials. 399:32-40
Phase relationships in Nd-deficient solid solutions Nd0.95−xCaxMnO2.93±δ (x=0.00, 0.05, 0.10, 0.15, 0.20) were investigated in the temperature range T=800–1100 °C in air and under reduced oxygen partial pressure (at T=1000 °C). Phase diagrams
Autor:
Petr Martyshko, Aleksey Vdovin, Tatyana Sherendo, Valentin Mitrofanov, Vladimir Vazhenin, Aleksey Alexeev, D. A. Zamyatin, L. A. Pamyatnykh
Publikováno v:
Solid State Phenomena. :587-590
The results of investigations of natural iron-chromium spinels of variable composition Fe2+(Cr2-xFex3+)O4 of the chromite-bearing Klyuchevskoi massif (Middle Urals), which are the main carriers of the magnetization of rocks are presented. Substantial
Autor:
R. G. Zakharov, Valentin Mitrofanov, Vladimir Borisovich Vykhodets, E. A. Pastukhov, Sofya Aleksandrovna Petrova, Sergei Aleksandrovich Uporov, Anatoly Yakovlevich Fishman, Tatiana Eugenievna Kurennykh
Publikováno v:
Diffusion Foundations. 1:175-197
The mechanically activated oxides MnO2, Mn2O3, Mn3O4 and MnO were studied under ambient and non-ambient temperature conditions. Regimes of mechanical treatment were found that allowed one to preserve the single-phase state without an essential change
Autor:
E. V. Zabolotskaya, Melkozerova, Lidia G. Maksimova, G.A. Dorogina, Dina G. Kellerman, Valentin Mitrofanov, Tatiana A. Denisova
Publikováno v:
Solid State Phenomena. :169-172
The results of magnetic behavior study of nickel ions, which were introduced into Zn2Fe(CN)6∙5.5H2O with channel structure, are presented. It was shown that nickel cations replace a part of Zn2+ ions or locate in the channels of lattice via the mol
Publikováno v:
Solid State Phenomena. :541-544
The peculiarities of the Faraday rotation in the imperfect garnet-type crystals for which the lattice irregularities are represented by the mixed valence clusters of transition metal ions are analyzed. The model takes into account the cubic and low s
Publikováno v:
Physics Letters A. 374:3067-3075
In this Letter we analyze the peculiarities of the Faraday rotation in the imperfect spinel type crystals for which the lattice irregularities are represented by the mixed valence clusters of transition metal ions. A such kind of complex system with
Autor:
Andrew Palii, Serghei Ostrovsky, Oleg S. Reu, Valentin Mitrofanov, Philip L. W. Tregenna-Piggott, A.S. Moskvin, Anatoly Yakovlevich Fishman, Sophia I. Klokishner
Publikováno v:
Defect and Diffusion Forum. :227-232
We report a model for the explanation of the single molecule magnet behavior of the [CuIILTbIII(hfac)2]2 cluster. The model takes into account the crystal field acting on the TbIII –ion and the exchange interaction between the TbIII and CuII ions.