Pleiades Publishing Ltd
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Nonlinear AC and DC Conductivities in a Two-Subband n-GaAs/AlAs Heterostructure
Pleiades Publishing Ltd - - 2020
Rogue waves in the basin of intermediate depth and the possibility of their formation due to the modulational instability
Pleiades Publishing Ltd - Tập 97 - Trang 194-198 - 2013
The properties of rogue waves in the basin of intermediate depth are discussed in comparison with known properties of rogue waves in deep waters. Based on observations of rogue waves in the ocean of intermediate depth we demonstrate that the modulational instability can still play a significant role in their formation for basins of 20 m and larger depth. For basins of smaller depth, the influence ......
On the berry phase in quantum oscillations observed in 3D topological insulators
Pleiades Publishing Ltd - Tập 104 - Trang 864-867 - 2017
It is demonstrated that the copper-doped high-quality Bi Se single crystals with a high density of bulk charge carriers are certainly 3D topological insulators. The analysis of quantum Shubnikov−de Haas (SdH) oscillations reveals that these materials simultaneously exhibit two types of such oscillations determined by the Landau levels related to both the 3D and 2D Fermi surfaces.
Nonperturbative shell correction to the Bethe-Bloch formula for the energy losses of fast charged particles
Pleiades Publishing Ltd - - 2011
A simple method including nonperturbative shell corrections has been developed for calculating energy losses on complex atoms. The energy losses of fast highly charged ions on neon, argon, krypton, and xenon atoms have been calculated and compared with experimental data. It has been shown that the inclusion of the non-perturbative shell corrections noticeably improves agreement with experimental d......
Multicritical behavior of the phase diagrams of ferromagnet/superconductor layered structures
Pleiades Publishing Ltd - Tập 71 - Trang 138-143 - 2000
For ferromagnet/superconductor (F/S) layered structures, new 3D Larkin-Ovchinnikov-Fulde-Ferrell (LOFF) states are predicted. In most cases, these states are characterized by a higher critical temperature T
c
than the known 1D LOFF states. It is shown that the nonmonotonic behavior of T
c
is determined by the oscillations of t......
Heating of the phantom of a biological tissue by a phase conjugate ultrasonic beam
Pleiades Publishing Ltd - Tập 96 - Trang 541-543 - 2012
The local heating of an absorbing medium by an ultrasonic beam with a conjugate wave front has been experimentally demonstrated. Plastisol, which is a polymeric material close in acoustic properties to biological tissue, is used as the medium. An ultrasonic heating of 7.2°C has been obtained in a time of about 100 s when the sample equipped with a thermocouple is placed between a focused piezoelec......
Multiphoton ionization of atoms by an ultrashort laser pulse
Pleiades Publishing Ltd - Tập 73 - Trang 1-5 - 2001
Closed analytical expressions for the probability of multiphoton ionization of atoms and ions by a time-varying electric field ℰ(t) are obtained by the imaginary time method. These expressions apply for arbitrary values of the Keldysh parameter γ. The dependence of the ionization probability and the photoelectron momentum spectrum on the shape of an ultrashort laser pulse is considered.
Resonance interaction of optical phonons with localized states
Pleiades Publishing Ltd - Tập 71 - Trang 155-159 - 2000
The optical-phonon Green’s function averaged over the positions of defects—both point and line— is calculated with allowance for possible localized states near the boundary of the continuous spectrum and for their intrinsic damping. The frequency-transfer dependence of the cross section for Raman scattering is calculated with the aid of this Green’s function.
Two models of anisotropic propagation of a cardiac excitation wave
Pleiades Publishing Ltd - Tập 100 - Trang 351-354 - 2014
Propagation of the action potential in the real heart is direction-dependent (anisotropic). We propose two general physical models explaining this anisotropy on the cellular level. The first, “delay” model takes into account the frequency of the cell-cell transitions in different directions of propagation, assuming each transition requires some small time interval. The second model relies on the a......
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