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排序方式: 共有97条查询结果,搜索用时 31 毫秒
1.
Kalyakin L. A. Zvezdin A. K. Gareeva Z. V. 《Theoretical and Mathematical Physics》2020,203(1):457-468
Theoretical and Mathematical Physics - We consider a system of nonlinear autonomous differential equations that describe the orientation of the antiferromagnetic vector in a multiferroic film and... 相似文献
2.
Interference of effects of different levels and magnitudes in producing a net magnetooptical response was considered for the first time in structures similar to magnetophotonic crystals at different wavelengths of the incident irradiation in regions far from plasmon resonances. Contributions of interference and diffraction phenomena in maxima of different orders in three-dimensional systems of the magnetophotonic crystal type were studied. Use of the integral response in the analysis of the magnetooptical effects was shown to lead to disappearing of the interference phenomena. The zero-order diffraction maximum reflects adequately the magnetic component of the magnetooptical response. Numerical estimates of the observed diffraction and interference effects are reported. 相似文献
3.
D. O. Ignatyeva A. N. Kalish V. I. Belotelov A. K. Zvezdin 《Physics of Wave Phenomena》2017,25(2):119-123
Properties of surface plasmon polariton waves are theoretically studied in structures containing topological insulators with the axion effect. The effect of axion properties on dispersion, localization, and polarization of plasmon polaritons is analyzed. A possibility of determining the axion effect from the variation in the plasmon-polariton polarization is shown, and conditions for enhancement of polarization effects are revealed in waveguide structures of the dielectric?metal?dielectric type. 相似文献
4.
N. E. Khokhlov V. I. Belotelov A. N. Kalish A. K. Zvezdin 《Moscow University Physics Bulletin》2011,66(3):238-241
It is shown that the inverse Faraday effect appears in the case of surface plasmon polariton propagation near a metal/paramagnetic
interface. The inverse Faraday effect in nanostructured periodically perforated metal-dielectric films increases because of
the excitation of surface plasmon polaritons. In this case, a stationary magnetic field is amplified by more than an order
of magnitude compared to the case of a smooth paramagnetic film. The distribution of an electromagnetic field is sensitive
to the wavelength and the angle of incidence, which allows one to effectively control the local magnetization that arises
due to the inverse Faraday effect. 相似文献
5.
The process of rearrangement of the magnetic structure of the low-spin cluster V15 in superhigh magnetic fields is investigated. At low temperatures, this process is shown to manifest itself as three quantum jumps, each of which is a transition causing the spin of the complex to increase by two unities. The nature of these quantum jumps is discussed. The magnetization curve and the magnetic susceptibility are calculated. 相似文献
6.
Gareeva Z. V. Zvezdin A. K. Shul’ga N. V. Gareev T. T. Chen S. M. 《Physics of the Solid State》2022,64(5):248-254
Physics of the Solid State - Magnetoelectric effects in multiferroics with a perovskite structure, such as bismuth ferrite, rare-earth orthochromites, and Ruddlesden–Popper structures... 相似文献
7.
A. G. Zhdanov A. K. Zvezdin A. P. Pyatakov T. B. Kosykh D. Viehland 《Physics of the Solid State》2006,48(1):88-95
The specific features of the “incommensurate-commensurate” phase transitions induced by a magnetic field in multiferroics
(materials with coexisting magnetic and electric ordering) are considered. These materials are ferroelectromagnets, for example,
bismuth ferrite BiFeO3 and BiFeO3-based compounds, which have spatially modulated spin structures. It is shown that the interaction between the electric and
magnetic subsystems of the multiferroic material can lead to an electric-field-induced shift of the critical magnetic field
corresponding to the transition from a spatially modulated state to a homogeneous antiferromagnetic state. According to the
theoretical estimates obtained for material parameters characteristic of the bismuth ferrite, this shift is of the order of
0.5 T in an electric field of 50 kV/cm. The phase diagrams are constructed in the “electric field-magnetic field” coordinates.
The results of calculations performed in the harmonic incommensurate structure approximation are compared with the exact soliton
solution. 相似文献
8.
V. I. Belotelov A. P. Pyatakov A. K. Zvezdin V. A. Kotov A. S. Logginov 《Technical Physics》2003,48(1):1-6
The images of magnetic and nonmagnetic nanoparticles obtained by scanning near-field microscopy in the photon collection mode
are numerically simulated. A theoretical approach that uses tensor electrodynamic Green’s functions to find the optical near
field in a given observation scheme is considered. Typicalimages of nanoparticles with various shapes are obtained by numerical
simulation. Subject to boundary conditions, the plane of polarization is shown to change at topographic features (edges and
angles) of objects studied. This makes the observation of the magnetic structure of a nanoparticle with a magnetooptic method
difficult. The near-field study of the magnetization distribution in homogeneous thin films appears to be more effective,
since the rotation of plane of polarization is associated primarily with the magnetic properties of the sample in this case. 相似文献
9.
D. P. Kulikova A. P. Pyatakov E. P. Nikolaeva A. S. Sergeev T. B. Kosykh Z. A. Pyatakova A. V. Nikolaev A. K. Zvezdin 《JETP Letters》2016,104(3):197-200
The possibility of the local nucleation of magnetic bubble domains from a single-domain state in an arbitrary region of a iron garnet film ((210) crystallographic orientation) by means of an electrically charged tip electrode has been experimentally demonstrated. The size of magnetic bubble domains nucleated near the contact point between the probe and sample depends on the magnitude of a DC voltage supplied to the probe. After the removal of the voltage, magnetic bubble domains move away from the probe, decreasing to the equilibrium radius. 相似文献
10.
Peculiarities of the inverse Faraday effect induced in iron garnet films by femtosecond laser pulses
M. A. Kozhaev A. I. Chernov I. V. Savochkin A. N. Kuz’michev A. K. Zvezdin V. I. Belotelov 《JETP Letters》2016,104(12):833-837
The inverse Faraday effect in iron garnet films subjected to femtosecond laser pulses is experimentally investigated. It is found that the magnitude of the observed effect depends nonlinearly on the energy of the optical pump pulses, which is in contradiction with the notion that the inverse Faraday effect is linear with respect to the pump energy. Thus, for pump pulses with a central wavelength of 650 nm and an energy density of 1 mJ/cm2, the deviation from a linear dependence is as large as 50%. Analysis of the experimental data demonstrates that the observed behavior is explained by the fact that the optically induced normal component of the magnetization is determined, apart from the field resulting from the inverse Faraday effect, by a decrease in the magnitude of the precessing magnetization under the influence of the femtosecond electromagnetic field. 相似文献