Volume 112, Number 1, October 2015
|Number of page(s)||5|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||20 October 2015|
Nonlinear electrical transport properties in silicene
1 Ningxia Key Laboratory of Information Sensing & Intelligent Desert, School of Physics & Electrical Information Engineering, Ningxia University - Yinchuan 750021, China
2 Shanghai University of Engineering Science - Shanghai 201620, China
3 School of Physics and Electrical Engineering, Anyang Normal University - Anyang 455000, China
Received: 15 June 2015
Accepted: 29 September 2015
By considering screened electron-impurity scattering with Coulombic potential and all intravalley and intervalley electron-phonon interactions due to deformation potential couplings, we explore the nonlinear electrical transport properties of massive Dirac electrons in a monolayer silicene with a balance-equation scheme. The strong effects of the energy gap on both linear and nonlinear drift velocity and resistivity are demonstrated. The tunable values over 50% for mobility and 1800% for resistivity by vertical electric field are predicted, indicating valuable application prospects in silicene-based devices.
PACS: 72.20.Ht – High-field and nonlinear effects / 73.25.+i – Surface conductivity and carrier phenomena / 72.10.Di – Scattering by phonons, magnons, and other nonlocalized excitations
© EPLA, 2015
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