In this work we present a recently developed transport model, based on the Wigner-function approach and allowing for non-parabolic band profiles. Two scattering mechanismIs are included by means of a Boltzmann-like collision operator, describing the collisions between electrons and polar optical and intervalley phonons. The transport equation for the Wigner function is solved by the splitting-scheme algorithm. We have chosen a one-dimensional model band profile, which exhibits satellite valleys, besides the minimum at the centre of the Brillouin zone, similar to the band profile of GaAs.
Numerical simulation of an intervalley transition by the Wigner-function approach / L., Demeio; Bordone, Paolo; Jacoboni, Carlo. - In: SEMICONDUCTOR SCIENCE AND TECHNOLOGY. - ISSN 0268-1242. - STAMPA. - 19:4(2004), pp. S244-S246. [10.1088/0268-1242/19/4/082]
Numerical simulation of an intervalley transition by the Wigner-function approach
BORDONE, Paolo;JACOBONI, Carlo
2004
Abstract
In this work we present a recently developed transport model, based on the Wigner-function approach and allowing for non-parabolic band profiles. Two scattering mechanismIs are included by means of a Boltzmann-like collision operator, describing the collisions between electrons and polar optical and intervalley phonons. The transport equation for the Wigner function is solved by the splitting-scheme algorithm. We have chosen a one-dimensional model band profile, which exhibits satellite valleys, besides the minimum at the centre of the Brillouin zone, similar to the band profile of GaAs.
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