Zobrazeno 1 - 10
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pro vyhledávání: '"Moskvin, A."'
Autor:
Moskvin, Alexander
Publikováno v:
Magnetochemistry 2021, 7(8), 111
Despite several decades of active experimental and theoretical studies of rare-earth orthoferrites, the mechanism of the formation of specific magnetic, magnetoelastic, optical, and magneto-optical properties remains a subject of discussion. This pap
Externí odkaz:
http://arxiv.org/abs/2401.11424
Autor:
Moskvin, Alexander
Publikováno v:
Magnetochemistry 2022, 8(8), 81
The concept of charge-transfer (CT) transitions in ferrites is based on the cluster approach and takes into account the relevant interactions as the low-symmetry crystal field, spin-orbital, Zeeman, exchange and exchange-relativistic interactions. Fo
Externí odkaz:
http://arxiv.org/abs/2401.11267
Autor:
Moskvin, A. S., Panov, Yu. D.
Publikováno v:
Phys. Solid State 65 (2023) 1081
We argue that the unusual properties of a wide class of materials based on Jahn-Teller 3d and 4d ions with different crystal and electronic structures, from quasi-two-dimensional unconventional superconductors (cuprates, nickelates, ferropnictides/ch
Externí odkaz:
http://arxiv.org/abs/2401.11028
A brief critical review is given of the 50-year history of experimental and theoretical studies of the magnetic properties of a new promising class of weak ferrimagnets such as RFe$_{1-x}$Cr$_x$O$_3$ with a non-magnetic R-ion (R = La , Y, Lu), i.e. s
Externí odkaz:
http://arxiv.org/abs/2312.04381
Autor:
Moskvin, A. S.
A wide class of materials with different crystal and electronic structures from quasi-two-dimensional unconventional superconductors (cuprates, nickelates, ferropnictides/chalcogenides, ruthenate SrRuO$_4$), 3D systems as manganites RMnO$_3$, ferrate
Externí odkaz:
http://arxiv.org/abs/2306.06612
Publikováno v:
Magnetochemistry 8, 45 (2022)
Spin reorientation is an important phenomenon of rare-earth perovskites, orthoferrites and orthochromites. In this study, we consider a simple but realistic microscopic theory of the spontaneous spin-reorientation transitions induced by the 4f-3d int
Externí odkaz:
http://arxiv.org/abs/2301.12157
Autor:
Moskvin, A. S.
Publikováno v:
Optics and Spectroscopy, 121, 467 (2016)
I present a critical overview of so-called "{\it ab initio}" DFT (density fuctional theory) based calculation schemes for the description of the electronic structure, energy spectrum, and optical response for strongly correlated 3$d$ oxides, in parti
Externí odkaz:
http://arxiv.org/abs/2301.11979
Autor:
Moskvin, A. S., Panov, Yu. D.
Publikováno v:
J Supercond Nov Magn (2019) 32, 61
We introduce a minimal model to describe the charge degree of freedom in cuprates with the on-site Hilbert space reduced to only the three valence states CuO$_4^{7-,6-,5-}$ (nominally Cu$^{1+,2+,3+}$) and make use of the S=1 pseudospin formalism. The
Externí odkaz:
http://arxiv.org/abs/2301.11951
Publikováno v:
V.V. Konev, V.A. Ulitko, D.N. Yasinskaya et al. Phys. Solid State 60, 2132-2134 (2018)
It is demonstrated in the (pseudo)spin S=1 formalism that the structure of antiphase domain boundaries in the phase of charge ordering of a mixed-valence system of the Cu1+, 2+, 3+ "triplet" type in cuprates on a two-dimensional square lattice depend
Externí odkaz:
http://arxiv.org/abs/2301.11876
Publikováno v:
Konev, V. V., Ulitko, V. A., Yasinskaya, D. N., Panov, Y. D., & Moskvin, A. S. Bulletin of the Russian Academy of Sciences: Physics, 83, 812-814 (2019)
It is shown that the structure of antiphase domain boundaries in the antiferromagnetic (AFM) phase of a highly anisotropic magnet with S = 1 on a two-dimensional square lattice depends greatly on single-ion anisotropy parameter D. Computer modeling o
Externí odkaz:
http://arxiv.org/abs/2301.11840