TITLE

Diffusive transport in graphene: The role of interband correlation

AUTHOR(S)
Liu, S. Y.; Lei, X. L.; Horing, Norman J. M.
PUB. DATE
August 2008
SOURCE
Journal of Applied Physics;Aug2008, Vol. 104 Issue 4, p043705
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We present a kinetic equation approach to investigate dc transport properties of graphene in the diffusive regime considering long-range electron-impurity scattering. In our study, the effects of interband correlation (or polarization) on conductivity are taken into account. We find that the conductivity contains not only the usual term inversely proportional to impurity density Ni but also an anomalous term that is linear in Ni. This leads to a minimum in the density dependence of conductivity when the electron density Ne is equal to a finite critical value Nc. The effects of various scattering potentials on the conductivity minimum are also analyzed. Using typical experimental parameters, we find that for random-phase-approximation–screened electron-impurity scattering, the minimum conductivity is about 4.42e2/h when Ne≈0.11Ni, and the conductivity varies almost linearly with the electron density for Ne>Ni.
ACCESSION #
34135429

 

Related Articles

  • On the spin polarization under Glauber electron scattering by a point dipole. Blinov, A. P. // Russian Physics Journal;Nov2005, Vol. 48 Issue 11, p1197 

    This paper considers the problem of small-angle electron scattering by a point dipole in the Glauber approximation taking into account the spin-orbit interaction in a continuous spectrum, which allows a general description of the polarization effects induced by the electron spin. It is shown for...

  • HERMES In Retrospect: An Experiment Based On Innovative Technologies. Steffens, Erhard // AIP Conference Proceedings;2/6/2008, Vol. 980 Issue 1, p48 

    Proposed in 1990 the HERMES experiment aimed at the measurement of spin-dependent observables in deep-inelastic scattering of electrons on few-nucleon targets. It relied on the availability of polarized stored electrons and on gas targets of sufficient density and polarization. Data were taken...

  • General survey of polarization observables in deuteron electrodisintegration. Arenhövel, H.; Leidemann, W.; Tomusiak, E. // European Physical Journal A -- Hadrons & Nuclei;Jan2005, Vol. 23 Issue 1, p147 

    Polarization observables in inclusive and exclusive electrodisintegration of the deuteron using a polarized beam and an oriented target are systematically surveyed using the standard nonrelativistic framework of nuclear theory but with leading-order relativistic contributions included. The...

  • Beyond the Standard Model: Future Prospects with Parity Violating Electron Scattering. Kumar, Krishna S. // AIP Conference Proceedings;8/4/2009, Vol. 1149 Issue 1, p69 

    We discuss the status and prospects of an experimental program of parity-violating asymmetry measurements in the scattering of longitudinally polarized electrons off unpolarized fixed targets. In particular, we focus on those measurements where judicious choices of target and kinematics allows...

  • Tests of Duality in the Spin-Structure Function g1. Korsch, Wolfgang // AIP Conference Proceedings;2006, Vol. 870 Issue 1, p631 

    Although quark-hadron duality is well established for the spin-independent structure function, F2p, hardly any information is available on the low Q2 scaling behavior of spin-structure functions. Recent experiments at Jefferson Lab measured the spin-structure function g1 in the nucleon resonance...

  • Low Energy Tests of the Standard Model with Spin Degrees of Freedom. Erler, Jens // AIP Conference Proceedings;2007, Vol. 915 Issue 1, p38 

    After briefly reviewing the status of the standard model, I will focus mainly on polarized electron scattering and other tests of the weak neutral current. I will also address other low energy tests in which polarization degrees of freedom play a crucial role, including precision muon physics...

  • Beam optics for electron scattering parity-violation experiments. Beck, Douglas H.; Pitt, Mark L. // European Physical Journal A -- Hadrons & Nuclei;May2005 Supplement 2, Vol. 24, p115 

    Parity-violating electron scattering experiments at intermediate energies measure asymmetries in the 10-6-10-5 range and therefore require stringent control of false asymmetries. One of the primary sources of such asymmetries is the combined effect of helicity-correlated changes in a certain...

  • Hadron Medium Modifications. Strauch, Steffen // EPJ Web of Conferences;2012, Issue 36, p00016-p.1 

    Proton recoil polarization in quasielastic electron scattering is a powerful tool to study properties of nucleons bound in the nuclear medium. The most precise results have been obtained at Jefferson Lab in the 4He(e,'p )³H reaction at four momentum transfers of Q² = 0.8 (GeV/c)² and at...

  • Relativistic effects on the Weibel instability of circularly polarized microwave produced plasmas. Shokri, B.; Ghorbanalilu, M. // Physics of Plasmas;Dec2004, Vol. 11 Issue 12, p5398 

    Analyzing the production of a weakly relativistic plasma produced by microwave fields with circular polarization in the adiabatic approximation, the electron distribution function is obtained, which is nonequilibrium and anisotropic. Furthermore, it is shown that the produced plasma is...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics