Zobrazeno 1 - 10
of 10
pro vyhledávání: '"M. S. Platunov"'
Autor:
N. V. Kazak, V. A. Dudnikov, M. S. Platunov, S. N. Vereshchagin, S. Yu. Gavrilkin, Yu. S. Orlov, D. A. Velikanov, Mikhail V. Gorev, Sergey Ovchinnikov, Alexey Veligzhanin, L. A. Solov’ev
Publikováno v:
Journal of Experimental and Theoretical Physics. 126:217-223
The XANES spectra (X-ray absorption near-edge spectra) at the K edge of Co and the L3 edge of Gd in polycrystalline Gd0.4Sr0.6CoO3 – δ rare-earth oxides with an ordered and disordered distribution of Gd3+ and Sr2+ cations over the A sites in the c
Autor:
N. V. Kazak, Yu. V. Knyazev, L. N. Bezmaternykh, M. S. Platunov, Sergey Ovchinnikov, D. A. Velikanov, N. B. Ivanova, Oleg A. Bayukov
Publikováno v:
Journal of Experimental and Theoretical Physics. 124:623-627
The investigation of mixed Co–Fe ludwigite single crystals shows that their magnetic properties are close to the magnetic properties of Fe3BO5 despite the predominance of cobalt ions. The magnetic properties of Co3 – x Fe x BO5 single crystals wi
Publikováno v:
JETP Letters. 104:588-600
The features of the characteristics of LnCoO3 cobaltites, where Ln is a rare-earth element, are discussed. Both experiment and theory demonstrate that their essentials are related to the low-spin ground state of cobalt ions. The thermally induced occ
Autor:
Pavel V. Dorovatovskii, Leonid A. Solovyov, K. A. Shaykhutdinov, Yu. S. Orlov, Alexey Veligzhanin, S. N. Vereshchagin, Sergey Ovchinnikov, N. V. Kazak, M. S. Platunov, Ya. V. Zubavichus, V. A. Dudnikov
Publikováno v:
JETP Letters. 103:196-200
X-ray diffraction and X-ray absorption near edge structure (XANES) spectra have been measured at the Со K-edge and Gd L 3-edge in GdCoO3 and Gd0.4Sr0.6CoO2.85 cobaltites. The effect of Sr substitution on the crystal structure and electronic and mag
Autor:
E. Schierle, E. Weschke, M. S. Platunov, S. N. Varnakov, Sergey M. Zharkov, Galina V. Bondarenko, Sergey Ovchinnikov
Publikováno v:
JETP Letters. 99:706-711
The structural and magnetic properties of (Fe/Si) N nanostructures obtained by successive deposition on the SiO2/Si(100) surface at a temperature of the substrate of 300 K have been studied. The thicknesses of all Fe and Si layers have been determine
Autor:
L. N. Bezmaternykh, Oleg A. Bayukov, D. A. Velikanov, A. D. Vasil’ev, Sergey Ovchinnikov, Ya. V. Zubavichus, Yu. V. Knyazev, Evgeniy Eremin, N. V. Kazak, N. B. Ivanova, M. S. Platunov
Publikováno v:
Journal of Experimental and Theoretical Physics. 117:94-107
The crystal structure and magnetic properties of Co3B2O6 single crystals are studied. Orthorhombic symmetry with space group Pnnm is detected at room temperature. The measurements of static magnetization and dynamic magnetic susceptibility reveal two
Autor:
E. Weschke, K. V. Lamonova, M. S. Platunov, E. Schierle, N. V. Kazak, V. N. Zabluda, N. B. Ivanova, Sergey Ovchinnikov
Publikováno v:
JETP Letters. 96:650-654
The temperature dependences of the X-ray absorption spectra (XAS) and of the spectra of X-ray magnetic circular dichroism (XMCD) are measured near the L 3,2 absorption edges of Co and Fe in ludwigite Co2FeBO5 single crystals. The antiparallel orienta
Autor:
Yu. V. Knyazev, L. N. Bezmaternykh, Sergey Ovchinnikov, V. I. Nizhankovskii, M. S. Platunov, N. B. Ivanova, N. V. Kazak, Alexander D. Vasiliev
Publikováno v:
Physics of the Solid State. 54:2212-2221
Single crystals of cobalt ludwigite Co3O2BO3 with diamagnetic substitution of Ga3+ ions for a part of the cobalt ions have been grown by the flux method. A detailed investigation of the crystal structure and magnetic properties of the compound has be
Autor:
N. V. Kazak, M. S. Platunov, Yu. V. Knyazev, L. N. Bezmaternykh, Alexander D. Vasiliev, N. B. Ivanova, Evgeniy Eremin
Publikováno v:
Low Temperature Physics. 38:172-174
Single crystal, needle shaped samples of diamagnetically diluted cobalt ludwigite CoMgGaO2BO3 have been grown by the flux method. X-ray diffraction and both dc and ac magnetic measurements are described. The unit cell volume changes significantly wit
Autor:
G. S. Patrin, L. N. Bezmaternykh, N. B. Ivanova, Alexander D. Vasiliev, M. S. Platunov, Juan Bartolomé, Sergey Ovchinnikov, Yu. V. Knyazev, D. A. Velikanov, N. V. Kazak
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
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Co 3O 2BO 3 and Co 2FeO 2BO 3 single crystals with a ludwigite structure are fabricated, and their crystal structure and magnetic properties are studied in detail. Substituted ludwigite Co 2FeO 2BO 3 undergoes two-stage magnetic ordering at the tempe