Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Pokrovsky, Valery L."'
Publikováno v:
Phys. Rev. B 98, 014436 (2018)
An asymptotically exact theory of spectrum and transverse distribution of magnetization in long-wave magnons is presented. It is based on exact analytical solution of linearized Landau-Lifshitz equation in a film. The quantization of the transverse w
Externí odkaz:
http://arxiv.org/abs/1710.05362
Autor:
Sun, Chen, Pokrovsky, Valery L.
We consider theoretically spin correlations in an 1D quantum wire with Rashba-Dresselhaus spin-orbit interaction (RDI). The correlations of non-interacting electrons display electron-spin resonance at a frequency proportional to the RDI coupling. Int
Externí odkaz:
http://arxiv.org/abs/1411.4084
Autor:
Sun, Chen, Pokrovsky, Valery L.
We consider magnetic properties of a long, thin-walled ferromagnetic nanotube. We assume that the tube consists of isotropic homogeneous magnet whose spins interact via the exchange energy, the dipole-dipole interaction energy, and also interact with
Externí odkaz:
http://arxiv.org/abs/1308.6233
Publikováno v:
Phys. Rev. Lett. 108 107203 (2012)
The structure of domain walls determines to a large extent the properties of magnetic materials, in particular their hardness and switching behavior, it represents an essential ingredient of spintronics. Common domain walls are of Bloch and Neel type
Externí odkaz:
http://arxiv.org/abs/1107.5753
Autor:
Pokrovsky, Valery L., Sun, Deqiang
We show by direct calculation starting from a microscopic model that the two-state system with time-dependent energy levels in the presence of fast quantum noise obeys the master equation. The solution of master equation is found analytically and ana
Externí odkaz:
http://arxiv.org/abs/cond-mat/0702476
Publikováno v:
Phys. Rev. B 71, 024525 (2005)
We apply the time dependent Ginzburg-Landau equations (TDGL) to study small ac currents of frequency $\omega$ in superconducting channels narrow on the scale of London penetration depth. We show that TDGL have $t$-dependent and spatially uniform solu
Externí odkaz:
http://arxiv.org/abs/cond-mat/0408215
Based on weakly-coupled anisotropic BCS theory, the dependence of energy gap and specific heat on temperature are evaluated for superconductor MgB$_2$, and the results are compared with experimental data.We show that the weak coupling anisotropic BCS
Externí odkaz:
http://arxiv.org/abs/cond-mat/0312210
Autor:
Pokrovsky, Valery L., Wei, Hongduo
We study the shift of the the superconducting transition temperature $T_c$ in ferromagnetic-superconducting bi-layers and in a superconducting film supplied a square array of ferromagnetic dots. We find that the transition temperature in these two ca
Externí odkaz:
http://arxiv.org/abs/cond-mat/0305153
Autor:
Kayali, M. Amin, Pokrovsky, Valery L.
Publikováno v:
Phys. Rev. B 69, 132501 (2004)
We study the transport properties of vortex matter in a superconducting thin film separated by a thin insulator layer from a ferromagnetic layer. We assume an alternating stripe structure for both FM and SC layers as found in [7]. We calculate the pe
Externí odkaz:
http://arxiv.org/abs/cond-mat/0303570
The Ginzburg-Landau coefficients, and the jump of the specific heat are calculated for a disordered two-band superconductor. We start with the analysis of a more general case arbitrary anisotropy. While the specific heat discontinuity at the critical
Externí odkaz:
http://arxiv.org/abs/cond-mat/0209342