中文
相关论文

相关论文: Electron scattering on microscopic corrugations in…

200 篇论文

Radiation-induced ratchet electric currents have been studied theoretically in graphene with a periodic noncentrosymmetric lateral potential. The ratchet current generated under normal incidence is shown to consist of two contributions, one…

介观与纳米尺度物理 · 物理学 2015-06-05 A. V. Nalitov , L. E. Golub , E. L. Ivchenko

We have studied electron scattering by out-of-plane (flexural) phonon modes in doped suspended graphene and its effect on charge transport. In the free-standing case (absence of strain) the flexural branch shows a quadratic dispersion…

材料科学 · 物理学 2012-09-14 Héctor Ochoa , Eduardo V. Castro , M. I. Katsnelson , F. Guinea

We investigate the electrical conductivity of spin-polarized graphene in the presence of short-ranged magnetic scatterers within the relaxation time approximation and the semi-classical Boltzmann approach. Spin-flip scattering of the…

介观与纳米尺度物理 · 物理学 2013-12-18 B. Zare Rameshti , A. G. Moghaddam , S. H. Abedinpour , S. Abdizadeh , M. Zareyan

Motivated by graphene-based quantum computer we examine the time-dependence of the position-momentum and position-velocity uncertainties in the monolayer gapped graphene. The effect of the energy gap to the uncertainties is shown to appear…

量子物理 · 物理学 2012-03-21 Eylee Jung , Kwang S. Kim , DaeKil Park

In this paper we explored the scattering behavior of thin cylinders made of LHM and coated by a monoatomic graphene layer. A spectral tunability of the resonance peaks is evidenced by altering the chemical potential of the graphene coating,…

光学 · 物理学 2018-03-14 Hamid Pashaeiadl , Mahin Naserpour , Carlos J. Zapata-Rodriguez

We review the theoretical and experimental results connected with the electron states in two-dimensional Dirac systems paying a special attention to the atomic collapse in graphene. Two-electron bound states of a Coulomb impurity are…

强关联电子 · 物理学 2018-06-15 E. V. Gorbar , V. P. Gusynin , O. O. Sobol

We study both monolayer and bilayer graphene transport properties taking into account the presence of correlations in the spatial distribution of charged impurities. In particular we find that the experimentally observed sublinear scaling…

介观与纳米尺度物理 · 物理学 2012-07-10 Qiuzi Li , E. H. Hwang , E. Rossi

Graphene ripples possess peculiar essential properties owing to the strong chemical bonds, as an investigation using first principle calculations clearly revealed. Various charge distributions, bond lengths, energy bands, and densities of…

材料科学 · 物理学 2015-01-08 Shih-Yang Lin , Shen-Lin Chang , Feng-Lin Shyu , Jian-Ming Lu , Ming-Fa Lin

Effects of disorder on the electronic transport properties of graphene are strongly affected by the Dirac nature of the charge carriers in graphene. This is particularly pronounced near the Dirac point, where relativistic charge carriers…

介观与纳米尺度物理 · 物理学 2015-06-18 Atikur Rahman , Janice Wynn Guikema , Nina Markovic

With a conserving formalism within the self-consistent Born approximation, we study the Hall conductivity of Dirac fermions in graphene under charged impurity scatterings. The calculated inverse Hall coefficient is compared with the…

强关联电子 · 物理学 2009-10-23 Xin-Zhong Yan , C. S. Ting

A theoretical study is presented on the scattering of graphene surface plasmons by defects in the graphene sheet they propagate in. These defects can be either natural (as domain boundaries, ripples and cracks, among others) or induced by…

介观与纳米尺度物理 · 物理学 2013-05-31 Juan L. Garcia-Pomar , Alexey Yu. Nikitin , Luis Martin-Moreno

We study electron transport properties of a monoatomic graphite layer (graphene) with different types of disorder. We show that the transport properties of the system depend strongly on the character of disorder. Away from half filling, the…

介观与纳米尺度物理 · 物理学 2007-05-23 P. M. Ostrovsky , I. V. Gornyi , A. D. Mirlin

Motivated by the experimental measurement of electrical and hall conductivity, thermopower and Nernst effect, we calculate the longitudinal and transverse electrical and heat transport in graphene in the presence of unitary scatterers as…

材料科学 · 物理学 2015-05-19 Vincent Ugarte , Vivek Aji , C. M. Varma

We study fluctuations of the conductance of micron-sized graphene devices as a function of the Fermi energy and magnetic field. The fluctuations are studied in combination with analysis of weak localization which is determined by the same…

介观与纳米尺度物理 · 物理学 2015-05-13 D. W. Horsell , A. K. Savchenko , F. V. Tikhonenko , K. Kechedzhi , I. V. Lerner , V. I. Fal'ko

Band gap engineering in graphene may open the routes towards transistor devices in which electric current can be switched off and on at will. One may, however, ask if a semiconducting band gap alone is sufficient to quench the current in…

介观与纳米尺度物理 · 物理学 2012-11-12 G. Tkachov , Martina Hentschel

We present a detailed numerical study of the electronic properties of single-layer graphene with resonant ("hydrogen") impurities and vacancies within a framework of noninteracting tight-binding model on a honeycomb lattice. The algorithms…

介观与纳米尺度物理 · 物理学 2010-09-29 Shengjun Yuan , Hans De Raedt , Mikhail I. Katsnelson

We discuss the novel electronic properties of graphene under an external periodic scalar or vector potential, and the analytical and numerical methods used to investigate them. When graphene is subjected to a one-dimensional periodic scalar…

材料科学 · 物理学 2011-02-21 Cheol-Hwan Park , Liang Zheng Tan , Steven G. Louie

We investigate the diffusive electron-transport properties of charge-doped graphene ribbons and nanoribbons with imperfect edges. We consider different regimes of edge scattering, ranging from wide graphene ribbons with (partially)…

We have investigated the main scattering mechanisms affecting mobility in graphene nanoribbons using detailed atomistic simulations. We have considered carrier scattering due to acoustic and optical phonons, edge roughness, single defects,…

介观与纳米尺度物理 · 物理学 2011-03-03 Alessandro Betti , Gianluca Fiori , Giuseppe Iannaccone

A theory for the effect of impurity scattering on electronic Raman scattering in unconventional superconductors is presented. The impurity dependence of the the spectra can be used to to distinguish between conventional (anisotropic…

凝聚态物理 · 物理学 2009-10-22 T. P. Devereaux