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We study various mechanisms of electron transmission across the corrugations in the graphene sheet. The spin dependence of the electron transmission probability in the rippled graphene is found. The electrons mean free path and transmission…

Mesoscale and Nanoscale Physics · Physics 2020-03-18 M. Pudlak , R. G. Nazmitdinov

We investigate real- and lattice-spin currents controlled by strain in a silicene-based junction, where chemical potential, perpendicular electric field and circularly polarized light are applied into the strained barrier. We find that the…

Mesoscale and Nanoscale Physics · Physics 2017-08-22 Sarayut Phonapha , Assanai Suwanvarangkoon , Bumned Soodchomshom

Graphene corrugations affect hybridization of $\pi$ and $\sigma$ orbitals of carbon atoms in graphene based systems. It can as well break differently the symmetry of the electron transfer integrals for different strip boundaries. Using…

Mesoscale and Nanoscale Physics · Physics 2024-05-07 M. Pudlak , R. G. Nazmitdinov

An appearance of a direct current perpendicularly to a constant component of an electric field in material with Rashba Hamiltonian under the influence of an elliptically polarized wave is investigated in one-subband approximation. On its…

Mesoscale and Nanoscale Physics · Physics 2014-07-07 V. I. Konchenkov , S. V. Kryuchkov , D. V. Zav'yalov

The first-order interaction correction to the irreducible polarization function of pristine graphene is studied at arbitrary relation between momentum and frequency. The results are used to calculate the dielectric function and the…

Mesoscale and Nanoscale Physics · Physics 2012-09-20 Inti Sodemann , Michael M. Fogler

We develop a theory of drag in graphene double layers near charge neutrality. We work in the regime of electron hydrodynamics and account for interlayer correlations of charge puddle disorder. The drag resistivity is expressed in terms of…

Mesoscale and Nanoscale Physics · Physics 2025-11-04 Dmitry Zverevich , Alex Levchenko , A. V. Andreev

Stretching dynamics of polymers in microfluidics is of particular interest for polymer scientists. As a charged polymer, a polyelectrolyte can be deformed from its coiled equilibrium configuration to an extended chain by applying uniform or…

Soft Condensed Matter · Physics 2014-11-18 Farnoush Farahpour , Fathollah Varnik , Mohammad Reza Ejtehadi

We propose a novel spin filter based on a graphene nanoring fabricated above a ferromagnetic strip. The exchange interaction between the magnetic moments of the ions in the ferromagnet and the electron spin splits the electronic states, and…

Mesoscale and Nanoscale Physics · Physics 2015-06-04 Javier Munárriz , Francisco Domínguez-Adame , Pedro A. Orellana , Andrey V. Malyshev

Manipulation of subwavelength objects by engineering the electromagnetic waves in the environment medium is pivotal for several particle handling techniques. In this letter, we theoretically demonstrate the possibility of engineering a…

Optics · Physics 2022-09-14 Hernán Ferrari , Carlos J. Zapata-Rodríguez , Mauro Cuevas

We study the interaction between polarized terahertz (THz) radiation and micro-structured large-area graphene in transmission geometry. In order to efficiently couple the radiation into the two-dimensional material, a lateral periodic…

Mesoscale and Nanoscale Physics · Physics 2015-07-06 C. Sorger , S. Preu , J. Schmidt , S. Winnerl , Y. V. Bludov , N. M. R. Peres , M. I. Vasilevskiy , H. B. Weber

We study the interaction of electromagnetic (EM) radiation with single-layer graphene and a stack of parallel graphene sheets at arbitrary angles of incidence. It is found that the behavior is qualitatively different for transverse magnetic…

Mesoscale and Nanoscale Physics · Physics 2013-10-31 Yuliy V. Bludov , Nuno M. R. Peres , Mikhail I. Vasilevskiy

We study the conductance of disordered graphene superlattices with short-range structural correlations. The system consists of electron- and hole-doped graphenes of various thicknesses, which fluctuate randomly around their mean value. The…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 N. Abedpour , Ayoub Esmailpour , Reza Asgari , M. Reza Rahimi Tabar

We show that a sliding motion between the two layers of a \moire superlattice induces an electric current and realizes a two-dimensional version of the topological Thouless pump when the Fermi energy lies in one of the minigaps.…

Mesoscale and Nanoscale Physics · Physics 2020-02-05 Yinhan Zhang , Yang Gao , Di Xiao

Scattering from a dielectric nanowire coated by helical graphene strips (nanoribbons) is investigated for dual-polarized wave at oblique incidence. In the long-wavelength approximation, the helical strips are treated as a homogeneous layer…

Nonreciprocal photonic devices enable "one-way" light flows and are essential building blocks of optical systems. Here, we investigate an alternative paradigm to break reciprocity and achieve unidirectional subwavelength light propagation…

Optics · Physics 2018-10-26 Tiago A. Morgado , Mário G. Silveirinha

We develop a microscopic theory of a strong electromagnetic field interaction with gated bilayer graphene. Quantum kinetic equations for density matrix are obtained using a tight binding approach within second quantized Hamiltonian in an…

Mesoscale and Nanoscale Physics · Physics 2017-05-24 A. A. Avetisyan , A. P. Djotyan , K. Moulopoulos

Patterned graphene, as an atomically thin layer, supports localized surface plasmon-polaritons (LSPPs) at mid-infrared or far-infrared frequencies. This provides a pronounced optical force/torque in addition to large optical cross sections…

Optics · Physics 2017-04-05 E. Mobini , A. Rahimzadegan , R. Alaee , C. Rockstuhl

The electron scattering by the short-range defects in the monolayer graphene is considered in the framework of the flatland model. We analyze the effect of this scattering on the electronic resistivity of the monolayer graphene (direct…

Mesoscale and Nanoscale Physics · Physics 2018-10-10 N Firsova , S Ktitorov

One fundamental motivation to know the dispersive, or frequency dependent characteristics of localized surface plasmons (LSPs) supported by elliptical shaped particles wrapped with graphene sheet, as well as their scattering characteristics…

Optics · Physics 2021-11-24 Mauro Cuevas , Ricardo A. Depine

Recent studies show that periodic potentials can generate superlattice Dirac points at energies in graphene (is the Fermi velocity of graphene and G is the reciprocal superlattice vector). Here, we perform scanning tunneling microscopy and…

Mesoscale and Nanoscale Physics · Physics 2013-02-21 Hui Yan , Zhao-Dong Chu , Wei Yan , Mengxi Liu , Lan Meng , Mudan Yang , Yide Fan , Jiang Wang , Rui-Fen Dou , Yanfeng Zhang , Zhongfan Liu , Jia-Cai Nie , Lin He
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