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General scattering mechanism and transport in graphene

Show simple item record Rabiu, M. Mensah, S. Y. Abukari, S. S. 2021-10-12T09:25:48Z 2021-10-12T09:25:48Z 2011
dc.identifier.issn 23105496
dc.description 8p:, ill. en_US
dc.description.abstract Using quasi-time dependent semi-classical transport theory in RTA, we obtained coupled current equations in the presence of time varying field and based on general scattering mechanism τ ∝ Eβ .We find that close to the Dirac point, the characteristic exponent β = +2 corresponds to acoustic phonon scattering. β = +1 long-range Coulomb scattering mechanism. β = −1 is short-range delta potential scattering in which the conductivity is constant of temperature. The β = 0 case is ballistic limit. In the low energy dynamics of Dirac electrons in graphene, the effect of the time-dependent electric field is to alter ust the electron charge by e → e(1 + (Ωτ) 2) making electronic conductivity non-linear. The effect of magnetic filed is also considered en_US
dc.language.iso en en_US
dc.publisher University of Cape Coast en_US
dc.title General scattering mechanism and transport in graphene en_US
dc.type Article en_US

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