Zobrazeno 1 - 10
of 146
pro vyhledávání: '"Ovchinnikova, E. P."'
Autor:
Bright, E. Lawrence, Ovchinnikova, E. N., Harding, L. M., Porter, D. G., Springell, R., Dmitrienko, V. E., Caciuffo, R., Lander, G. H.
Publikováno v:
Physical Review B 110, 125138 (2024)
We have conducted a series of scattering experiments at the uranium M4 absorption edge on low-symmetry uranium compounds (U2N3 and U3O8) produced as epitaxial films. At weak and forbidden reflections, we find a resonant signal, independent of tempera
Externí odkaz:
http://arxiv.org/abs/2409.03392
We study the electron energy spectra of two powerful solar flares SOL2003-10-28T 11:06:16 (GOES class X17.2) and SOL2002-07-23T00:18:16 (X4.8) on the basis of HXR and gamma-ray spectra obtained from RHESSI data. Electron-electron (e-e) bremsstrahlung
Externí odkaz:
http://arxiv.org/abs/2012.07908
Akademický článek
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Autor:
Pincini, D., Fabrizi, F., Beutier, G., Nisbet, G., Elnaggar, H., Dmitrienko, V. E., Katsnelson, M. I., Kvashnin, Y. O., Lichtenstein, A. I., Mazurenko, V. V., Ovchinnikova, E. N., Dimitrova, O. V., Collins, S. P.
Publikováno v:
Phys. Rev. B 98, 104424 (2018)
The orbital contribution to the magnetic moment of the transition metal ion in the isostructural weak ferromagnets ACO$_3$ (A=Mn,Co,Ni) and FeBO$_3$ was investigated by a combination of first-principles calculations, non-resonant x-ray magnetic scatt
Externí odkaz:
http://arxiv.org/abs/1805.12423
This work is dedicated to the results were got in the model theory of the regular polygons. We give the characterization of the monoids with axiomatizable and model complete class of regular polygons. We describe the monoids with complete class of re
Externí odkaz:
http://arxiv.org/abs/1805.02918
Autor:
Beutier, G., Collins, S. P., Dimitrova, O. V., Dmitrienko, V. E., Katsnelson, M. I., Kvashnin, Y. O., Lichtenstein, A. I., Mazurenko, V. V., Nisbet, G., Ovchinnikova, E. N., Pincini, D.
Publikováno v:
Phys. Rev. Lett. 119, 167201 (2017)
We observe and explain theoretically a dramatic evolution of the Dzyaloshinskii-Moriya interaction in the series of isostructural weak ferromagnets, MnCO$_3$, FeBO$_3$, CoCO$_3$ and NiCO$_3$. The sign of the interaction is encoded in the phase of x-r
Externí odkaz:
http://arxiv.org/abs/1704.00161
Autor:
Beutier, G., Collins, S. P., Nisbet, G., Akimova, K. A., Ovchinnikova, E. N., Oreshko, A. P., Dmitrienko, V. E.
Publikováno v:
Physical Review B, 2015, 92, pp. 214116
KH2PO4 (KDP) belongs to the class of hydrogen-bonded ferroelectrics, whose paraelectric to ferroelectric phase transition is driven by the ordering of the protons in the hydrogen bonds. We demonstrate that forbidden reflections of KDP, when measured
Externí odkaz:
http://arxiv.org/abs/1601.00776
Akademický článek
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Autor:
Ovchinnikova, E. A., Koshelets, V. P., Filippenko, L. V., Averkin, A. S., Shitov, S. V., Ustinov, A. V.
We continue detailed study of microwave properties of a superconducting left-handed tunable CPW transmission line (LHTL). The line consists of a central conductor, loaded with series of Josephson junctions as fixed inductors; the line is shunted with
Externí odkaz:
http://arxiv.org/abs/1412.5497
Autor:
Dmitrienko, V. E., Ovchinnikova, E. N., Collins, S. P., Nisbet, G., Beutier, G., Kvashnin, Y. O., Mazurenko, V. V., Lichtenstein, A. I., Katsnelson, M. I.
Publikováno v:
Nature Physics 10, 202-206 (2014)
Magnetism - the spontaneous alignment of atomic moments in a material - is driven by quantum-mechanical `exchange' interactions which operate over atomic distances as a result of the fundamental symmetry of electrons. Currently, one of the most activ
Externí odkaz:
http://arxiv.org/abs/1404.0501