Search Results - "KAZAK, N. V"

Magnetic Structure of Fe5O6: Group-Theoretical Analysis and DFT Calculations by Zhandun, V. S., Kazak, N. V., Vasiukov, D. M.

“…The magnetic structure of Fe 5 O 6 is studied using a combination of the group-theoretical analysis and DFT +  U calculations of the electronic spectrum. The…”
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Magnetic Properties of FeBO3 in the Low-Spin State by Knyazev, Yu. V., Kazak, N. V., Gavrichkov, V. A., Polukeev, S. I., Ovchinnikov, S. G.

“…Changes in the magnetic properties of FeBO 3 single crystals in the course of spin crossover occurring with increasing pressure up to 63 GPa are studied both…”
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Structural Diversity and Phase Transitions in Mg2 –xMn1 +xBO5 (x = 0.0, 0.2, 0.4) Borates with a Mixed Valence by Belskaya, N. A., Kazak, N. V., Vasiliev, A. D., Eremin, E. V., Moshkina, E. M., Velikanov, D. A., Bezmaternykh, L. N., Gavrilkin, S. Yu, Ovchinnikov, S. G.

“…Single and polycrystalline samples of Mg 2 – x Mn 1 + x BO 5 ( x = 0.0, 0.2, 0.4) oxyborates have been obtained for the first time by spontaneous…”
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Weak Antiferromagnet Iron Borate FeBO3. Classical Object for Magnetism and the State of the Art by Ovchinnikov, S. G., Rudenko, V. V., Kazak, N. V., Edelman, I. S., Gavrichkov, V. A.

“…The simple lattice and magnetic structure, the high Néel temperature, the narrow antiferromagnetic resonance line of FeBO 3 , and the narrow electron…”
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Structural Disorder, Specific Heat, and Magnetic Transitions in Cu2FeBO5 by Gokhfeld, Yu. S., Kazak, N. V., Bel’skaya, N. A., Molokeev, M. S., Gudim, I. A., Kondratiev, O. A., Eremin, E. V., Knyazev, Yu. V., Velikanov, D. A., Ovchinnikov, S. G.

“…Cu 2 FeBO 5 ludwigite single crystals have been grown from a solution–melt by spontaneous crystallization. Using the X-ray diffraction method, the crystal…”
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Spin-Flop Transition in Co2B2O5 Pyroborate by Kazak, N. V., Belskaya, N. A., Moshkina, E. M., Solovyov, L. A., Eremin, E. V., Gavrilkin, S. Yu, Ovchinnikov, S. G.

“…Cobalt pyroborate Co 2 B 2 O 5 single crystals have been obtained by spontaneous crystallization from solution–melt. Powder X-ray diffraction measurements have…”
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Effect of Electron Delocalization on the “Recoil-Free” Absorption of γ-Ray Photons in Fe1.75V0.25BO4 Warwickite by Knyazev, Yu. V., Bayukov, O. A., Shustin, M. S., Balatskii, D. V., Bel’skaya, N. A., Gromilov, S. A., Sukhikh, A. S., Rudenko, V. V., Kazak, N. V.

“…Mössbauer spectroscopy is used to study the characteristic features of the crystal lattice dynamics in powdered single crystals of Fe 1.75 V 0.25 BO 4…”
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Effect of magnetic frustrations on magnetism of the Fe3BO5 and Co3BO5 ludwigites by Knyazev, Yu.V., Kazak, N.V., Nazarenko, I.I., Sofronova, S.N., Rostovtsev, N.D., Bartolome, J., Arauzo, A., Ovchinnikov, S.G.

“…•The magnetic structures of Fe3BO5 and Co3BO5 ludwigites have been studied experimentally and theoretically.•The different collinear spin configurations in the…”
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Magnetization reversal and sign reversal exchange bias field in polycrystalline Ni5.33Ta0.67B2O10 by Sofronova, S.N., Kazak, N.V., Eremin, E.V., Moshkina, E.M., Chernyshov, A.V., Bovina, A.F.

“…The sign reversal of both magnetization and exchange bias field was studied in the polycrystalline Ni5.33Ta0.67B2O10. The crystal structure of…”
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Anomalies of the electronic structure and physical properties of rare-earth cobaltites near spin crossover by Dudnikov, V. A., Orlov, Yu. S., Kazak, N. V., Platunov, M. S., Ovchinnikov, S. G.

“…The features of the characteristics of LnCoO 3 cobaltites, where Ln is a rare-earth element, are discussed. Both experiment and theory demonstrate that their…”
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Co5/3Nb1/3BO4: A new cobalt oxyborate with a complex magnetic structure by Kazak, N.V., Belskaya, N.A., Moshkina, E.M., Bezmaternykh, L.N., Vasiliev, A.D., Bartolome, J., Arauzo, A., Velikanov, D.A., Gavrilkin, S.Yu, Gorev, M.V., Patrin, G.S., Ovchinnikov, S.G.

“…•New oxyborate Co5/3Nb1/3BO4 was grown using the flux technique.•Crystal structure has been resolved in details.•The compound undergoes two magnetic…”
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Structural, Magnetic, and Thermodynamic Properties of Ordered and Disordered Cobaltite Gd0.1Sr0.9CoO3 – δ by Dudnikov, V. A., Kazak, N. V., Orlov, Yu. S., Vereshchagin, S. N., Gavrilkin, S. Yu, Tsvetkov, A. Yu, Gorev, M. V., Veligzhanin, A. A., Trigub, A. L., Troyanchuk, I. O., Ovchinnikov, S. G.

“…The effect of cationic and anionic orderings on the crystal structure and magnetic properties of substituted rare-earth cobaltites Gd 0.1 Sr 0.9 CoO 3 – δ was…”
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Antiferromagnetism of the cation-ordered warwickite system Mn2-xMgxBO4 (x = 0.5, 0.6 and 0.7) by Kazak, N.V., Belskaya, N.A., Moshkina, E.M., Bezmaternykh, L.N., Vasiliev, A.D., Sofronova, S.N., Eremina, R.M., Eremin, E.V., Muftakhutdinov, A.R., Cherosov, M.A., Ovchinnikov, S.G.

“…Single crystals of Mn2-xMgxBO4 solid solutions were obtained using flux synthesis. Regular cation and charge distributions are observed. The Mn2-xMgxBO4 system…”
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The superexchange interactions in mixed Co–Fe ludwigite by Kazak, N.V., Ivanova, N.B., Bayukov, O.A, Ovchinnikov, S.G, Vasiliev, A.D., Rudenko, V.V., Bartolomé, J., Arauzo, A., Knyazev, Yu.V.

“…The crystal structure, cation distribution and exchange interactions in the Co 2.25Fe 0.75O 2BO 3 ludwigite have been explored through X-ray diffraction,…”
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Crystal and local atomic structure of MgFeBO4, Mg0.5Co0.5FeBO4 and CoFeBO4: Effects of Co substitution by Kazak, N. V., Platunov, M. S., Knyazev, Yu. V., Ivanova, N. B., Zubavichus, Y. V., Veligzhanin, A. A., Vasiliev, A. D., Bezmaternykh, L. N., Bayukov, O. A., Arauzo, A., Bartolomé, J., Lamonova, K. V., Ovchinnikov, S. G.

“…Single‐crystalline MgFeBO4, Mg0.5Co0.5FeBO4, and CoFeBO4 have been grown by the flux method. The samples have been characterized by X‐ray spectral analysis,…”
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Low-Temperature Schottky Anomalies and the Magnetic State of the p Electrons of Oxygen in Substituted Gd0.4Sr0.6CoO3 – δ Cobaltites by Orlov, Yu. S., Dudnikov, V. A., Platunov, M. S., Gorev, M. V., Velikanov, D. A., Kazak, N. V., Gavrilkin, S. Yu, Solov’ev, L. A., Veligzhanin, A. A., Vereshchagin, S. N., Ovchinnikov, S. G.

“…The XANES spectra (X-ray absorption near-edge spectra) at the K edge of Co and the L 3 edge of Gd in polycrystalline Gd 0.4 Sr 0.6 CoO 3 – δ rare-earth oxides…”
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Magnetic properties of Co 2 2+ Co 1 − x 3+ Fe x 3+ BO5 (x = 0.10) single crystals with a ludwigite structure by Knyazev, Yu. V., Kazak, N. V., Bayukov, O. A., Platunov, M. S., Velikanov, D. A., Bezmaternykh, L. N., Ivanova, N. B., Ovchinnikov, S. G.

“…The investigation of mixed Co–Fe ludwigite single crystals shows that their magnetic properties are close to the magnetic properties of Fe3BO5 despite the…”
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Study of mixed-valence Mn2BO4 using XRD, XPS and XAFS spectroscopies by Kazak, N.V., Platunov, M.S., Knyazev, Yu.V., Moshkina, E.M., Solovyov, L.A., Vereshchagin, S.N., Mikhlin, Yu.L., Veligzhanin, A.A., Trigub, A.L., Ovchinnikov, S.G.

“…The valence states and local structure around Mn atoms in mixed-valence Mn2BO4 have been studied by temperature dependent X-ray powder diffraction (XRPD),…”
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Effect of Fe-substitution on the structure and magnetism of single crystals Mn2-xFexBO4 by Platunov, M.S., Kazak, N.V., Knyazev, Yu.V., Bezmaternykh, L.N., Moshkina, E.M., Trigub, A.L., Veligzhanin, A.A., Zubavichus, Y.V., Solovyov, L.A., Velikanov, D.A., Ovchinnikov, S.G.

“…•Single crystals of of the warwickites Mn2-xFexBO4 (x=0.3, 0.5, 0.7) have been synthesized.•Crystal and local atomic structure has been studied through X-ray…”
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Low-temperature magnetic behavior of the rare-earth cobaltites GdCoO3 and SmCoO3 by Ivanova, N. B., Kazak, N. V., Michel, C. R., Balaev, A. D., Ovchinnikov, S. G.

“…The temperature and magnetic field dependences of the static magnetization of the polycrystalline rare-earth cobaltites GdCoO3 and SmCoO3 have been measured…”
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