Search Results - "Kosmachev, O. A."

Dynamic and Static Properties of a Non-Heisenberg Ferrimagnet with Single-Ion Easy-Axis Anisotropy by Kosmachev, O. A., Matyunina, Ya. Yu, Fridman, Yu. A.

“…We analyze the influence of the single-ion easy-axis anisotropy on the phase states and elementary excitation spectra of a ferrimagnet with sublattices with S…”
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Spin nematic and orthogonal nematic states in S=1 non-Heisenberg magnet by Fridman, Yu.A., Kosmachev, O.A., Klevets, Ph.N.

“…Phases of S=1 non-Heisenberg magnet at various relationships between the exchange integrals are studied in the mean-field limit at zero temperature. It is…”
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Phase transitions in S=1 antiferromagnet with Ising-like exchange interaction and strong easy-plane single-ion anisotropy by Klevets, Ph.N., Kosmachev, O.A., Fridman, Yu.A.

“…Spin states of strongly anisotropic easy-plane antiferromagnet with Ising-like exchange interaction in the external magnetic field are investigated within the…”
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Singular points of the isotropic Non-Heisenberg magnet by Matyunina, Ya Yu, A. Kosmachev, O., Fridman, Yu A.

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Supersolid magnetic phase realization in strongly anisotropic easy-plane antiferromagnet with Ising-like exchange interaction in the transverse magnetic field by Klevets, Ph.N., Kosmachev, O.A., Fridman, Yu.A.

“…Phase states of strongly anisotropic easy-plane spin-1 antiferromagnet with Ising-like exchange interaction have been investigated at transverse orientation of…”
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Phase states of an S = 1 magnet with anisotropic exchange interactions by Fridman, Yu.A., Kosmachev, O.A., Klevets, Ph.N.

“…A system with anisotropic Heisenberg and biquadratic exchange interactions and with easy-plane single-ion anisotropy is investigated. The magnons’ spectra are…”
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A Spin Nematic in a Strong Magnetic Field by Matyunina, Ya. Yu, Kosmachev, O. A., Fridman, Yu. A.

“…The possibility of existence of a spin nematic state under a strong magnetic field in a ferromagnetic substance, which exhibits large biquadratic exchange…”
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Influence of magnetic dipole and magnetoelastic interactions on the phase states of 2D non-Heisenberg ferromagnetic with complex exchange interactions by Fridman, Yu.A., Matunin, D.A., Klevets, Ph.N., Kosmachev, O.A.

“…The phase states of the 2D non-Heisenberg ferromagnetic with anisotropic bilinear and biquadratic exchange interactions are investigated. The limiting cases of…”
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Influence of strong single-ion anisotropy on phase states of 3D and 2D frustrated magnets by Fridman, Yu.A., Kosmachev, O.A., Matunin, D.A., Gorelikov, G.A., Klevets, Ph.N.

“…We investigated the influence of strong single-ion anisotropy, exceeding exchange interaction, and frustrated exchange interaction on spin-wave excitation…”
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Spin nematic and antinematic states in a spin-3/2 isotropic non-Heisenberg magnet by Fridman, Yu A, Kosmachev, O A, Kolezhuk, A K, Ivanov, B A

“…The ground state phase diagram of a general isotropic spin-3/2 system with nearest-neighbor exchange is shown to contain unconventionally ordered spin nematic…”
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Phase states of a magnetic material with the spin S = 2 and the isotropic exchange interaction by Kosmachev, O. A., Fridman, Yu. A., Ivanov, B. A.

“…A phase diagram of a magnetic material with the spin S = 2 is obtained including all allowed spin invariants for the isotropic exchange interaction at an…”
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The influence of external magnetic fields on phase states and spectra of coupled magnetoelastic waves in a biaxial non-Heisenberg ferromagnetic by Fridman, Yu.A., Kosmachev, O.A.

“…The spectra of coupled magnetoelastic waves of a biaxial non-Heisenberg ferromagnetic in an external magnetic field have been investigated. It is shown that in…”
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A Two-Sublattice Non-Heisenberg Magnet with S = 1 and Complex Interion Anisotropy by Kosmachev, O. A., Krivtsova, A. V., Fridman, Yu. A.

“…Static and dynamic properties of a two-sublattice non-Heisenberg magnet with complex interion anisotropy of both bilinear and biquadratic exchange interactions…”
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Isotropic non-Heisenberg magnet with two sublattices (1, 1/2): Statics and dynamics by Krivtsova, A.V., Matyunina, Ya.Yu, Polyanskaya, E.A., Kosmachev, O.A., Fridman, Yu.A.

“…•Studied the influence of non-Heisenberg exchange interaction on the phase states of isotropic ferrimagnet.•Shown that the quadrupolar-ferrimagnetic phase can…”
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Dynamic and static properties of a non-Heisenberg magnet with complex interion anisotropy by Gorelikov, G. A., Kosmachev, O. A., Krivtsova, A. V., Fridman, Yu. A.

“…The influence of the anisotropic exchange interaction on the phase states of a non-Heisenberg ferromagnet with a magnetic-ion spin S = 1 is studied. It is…”
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“Supersolid” phase in spin-1 easy-plane antiferromagnetic by Fridman, Y. A., Kosmachev, O. A., Klevets, P. N.

“…The phase states are investigated for the spin-1 two-sublattice antiferromagnetic with strong easy-plane single-ion anisotropy, exceeding the exchange…”
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Supersolid magnetic phase in the two-dimensional Ising-like antiferromagnet with strong single-ion anisotropy by Meleshko, A. G., Klevets, Ph. N., Gorelikov, G. A., Kosmachev, O. A., Fridman, Yu. A.

“…The Ising model with the frustrated exchange interaction for strongly anisotropic antiferromagnetic ultrathin film is investigated in the mean field…”
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Formation of quadrupolar phase in non-Heisenberg ferromagnets with half-integer spin by Fridman, Yu.A., Kosmachev, O.A., Spirin, D.V.

“…Possibility of realization of quadrupolar phase in non-Heisenberg ferromagnet with magnetic ion spin 3 2 is studied. It is shown that such phase state exists…”
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Effects of temperature on the dynamic and static properties of a non-heisenberg anisotropic ferromagnet by Yarygina, E.A., Kozachek, V.V., Kosmachev, O.A., Fridman, Yu.A.

“…•Dependence of the parameters of the ferromagnet S= 1 on temperature and anisotropy constant.•Temperatures of transitions to the paramagnetic and nematic…”
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Effect of an external magnetic field on the phase states and dynamic properties of the strongly anisotropic antiferromagnet by Yarygina, E.A., Klevets, Ph.N., Kosmachev, O.A., Fridman, Yu.A., Khovaylo, Vladimir

“…•The effect of an external magnetic field on the dynamic and static properties of a highly anisotropic Ising antiferromagnet is studied.•It has been…”
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