Zobrazeno 1 - 10
of 67
pro vyhledávání: '"Savel'ev, Sergey E."'
Publikováno v:
Phys. Rev. B 89, 155132 (2014)
We demonstrate how to control the spectra and current flow of Dirac electrons in both a graphene sheet and a topological insulator by applying either two linearly polarized laser fields with frequencies $\omega$ and $2\omega$ or a monochromatic (one-
Externí odkaz:
http://arxiv.org/abs/1312.0642
We propose a simple model of a nanoswitch as a memory resistor. The resistance of the nanoswitch is determined by electron tunneling through a nanoparticle diffusing around one or more potential minima located between the electrodes in the presence o
Externí odkaz:
http://arxiv.org/abs/1304.4501
Publikováno v:
Phys. Rev. Lett. 109, 226602 (2012)
A method is derived to solve the massless Dirac-Weyl equation describing electron transport in a mono-layer of graphene with a scalar potential barrier U(x,t), homogeneous in the y-direction, of arbitrary x- and time dependence. Resonant enhancement
Externí odkaz:
http://arxiv.org/abs/1210.7609
Publikováno v:
Phys. Rev. Lett 104, 020601 (2010)
A Brownian particle moving across a porous membrane subject to an oscillating force exhibits stochastic resonance with properties which strongly depend on the geometry of the confining cavities on the two sides of the membrane. Such a manifestation o
Externí odkaz:
http://arxiv.org/abs/1206.1723
Publikováno v:
Physical Review E 84, 011109 (2011)
Geometric stochastic resonance of particles diffusing across a porous membrane subject to oscillating forces is characterized as a synchronization process. Noninteracting particle currents through a symmetric membrane pore are driven either perpendic
Externí odkaz:
http://arxiv.org/abs/1205.6635
From the exact solution of the Dirac-Weyl equation we find unusual currents j_y running in y-direction parallel to a time-dependent scalar potential barrier W(x,t) placed upon a monolayer of graphene, even for vanishing momentum component p_y. In the
Externí odkaz:
http://arxiv.org/abs/1107.4983
Publikováno v:
Phys. Rev. B 84, 035428 (2011)
We establish an analogy between spectra of Dirac fermions in laser fields and an electron spectrum of graphene superlattices formed by static 1D periodic potentials. The general relations between a laser-controlled spectrum where electron momentum de
Externí odkaz:
http://arxiv.org/abs/1103.5983
Publikováno v:
Phys. Rev. E 83, 061401 (2011)
We consider the unidirectional particle transport in a suspension of colloidal particles which interact with each other via a pair potential having a hard-core repulsion plus an attractive tail. The colloids are confined within a long narrow channel
Externí odkaz:
http://arxiv.org/abs/1103.2871
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:
Phys. Rev. E 80, 011916 (2009)
Respiration in bacteria involves a sequence of energetically-coupled electron and proton transfers creating an electrochemical gradient of protons (a proton-motive force) across the inner bacterial membrane. With a simple kinetic model we analyze a r
Externí odkaz:
http://arxiv.org/abs/0908.1179