Zobrazeno 1 - 10
of 77
pro vyhledávání: '"Kusmartsev, Feodor V"'
Quantum paraelectrics are materials in which a long-range ferroelectric/antiferroelectric order is suppressed by quantum fluctuations, i.e. zero-point motion of the lattice prevents condensation of the soft polar phonon mode even at T = 0 K. The most
Externí odkaz:
http://arxiv.org/abs/1908.01631
Publikováno v:
Appl. Phys. Lett. 98, 163113 (2011)
The magnetic properties of a system of three interacting magnetic elliptical discs are examined. For the various levels of uniaxial anisotropy investigated a complicated series of phase transitions exist. These are marked by the critical lines of sta
Externí odkaz:
http://arxiv.org/abs/1711.05577
We develop the concept of fractal metamaterials which consist of arrays of nano and micron sized rings containing Josephson junctions which play the role of "atoms" in such artificial materials. We show that if some of the junctions have $\pi$-shifts
Externí odkaz:
http://arxiv.org/abs/1606.01413
Autor:
Pototsky, Andrey, Marchesoni, Fabio, Kusmartsev, Feodor V., Hänggi, Peter, Savel'ev, Sergey E.
Publikováno v:
European Physical Journal B 85, 356 (2012)
Relativistic Brownian motion can be inexpensively demonstrated on a graphene chip. The interplay of stochastic and relativistic dynamics, governing the transport of charge carrier in graphene, induces noise-controlled effects such as (i) a stochastic
Externí odkaz:
http://arxiv.org/abs/1103.0945
Publikováno v:
J. Acoust. Soc. Am. Volume 130, Issue 5, pp. 2746-2755 (2011)
The results of numerical modelling of sonic crystals with resonant array elements are reported. The investigated resonant elements include plain slotted cylinders as well as various their combinations, in particular, Russian doll or Matryoshka config
Externí odkaz:
http://arxiv.org/abs/1102.0399
We have found that encapsulated atoms in fullerene molecules, which carry a spin, can be used for fast quantum computing. We describe the scheme for performing quantum computations, going through the preparation of the qubit state and the realization
Externí odkaz:
http://arxiv.org/abs/quant-ph/0507169
Publikováno v:
Phys. Lett. A 305 (2002) 281-288
We describe a limiting case when nonlinear dynamics of an ac-driven semiconductor superlattice in the miniband transport regime is governed by a periodically forced and damped pendulum. We find analytically the conditions for a transition to chaos an
Externí odkaz:
http://arxiv.org/abs/cond-mat/0208583
We find the conditions for a rectification of electromagnetic wave in a lateral semiconductor superlattice with a high mobility of electrons. The rectification is assisted by a transition to a dissipative chaos at a very high mobility. We show that m
Externí odkaz:
http://arxiv.org/abs/cond-mat/0111454
Autor:
Alekseev, Kirill N., Cannon, Ethan H., McKinney, Jonathan C., Kusmartsev, Feodor V., Campbell, David K.
Publikováno v:
Physica D, 113 (1998) 129-133
We study the motion of electrons in a single miniband of a semiconductor superlattice driven by THz electric field polarized along the growth direction. We work in the semiclassical balance-equation model, including different elastic and inelastic sc
Externí odkaz:
http://arxiv.org/abs/cond-mat/0104144
Publikováno v:
Europhysics Letters 56 (2001) 842; Erratum: 68 (2004) 753
We consider the spontaneous creation of a dc voltage across a strongly coupled semiconductor superlattice subjected to THz radiation. We show that the dc voltage may be approximately proportional either to an integer or to a half- integer multiple of
Externí odkaz:
http://arxiv.org/abs/cond-mat/0103608