Longitudinal electro-kinetic waves in ion-implanted semiconductor plasmas
School of Studies in Physics, Vikram University, Ujjain 456 010 (M.P.),
Corresponding author: a firstname.lastname@example.org
Revised: 15 June 2004
Published online: 7 September 2004
A comprehensive investigation of propagation of new longitudinal electro-kinetic modes and novel properties introduced due to presence of negatively charged colloids in semiconductor plasma is presented. By employing the multi-fluid balance equations, a compact dispersion relation for the cases in which wave phase velocity is either larger or smaller than electron thermal velocity is derived. This dispersion relation is used to study wave phenomena and electro-kinetic mode instability numerically. We find important modifications in electro-kinetic branch as well as the existence of new modes of propagation in colloids laden semiconductor plasma. The results of this investigation should be useful in understanding the characteristics of longitudinal electro-kinetic wave in colloids laden semiconductor plasmas whose main constituents are electrons, holes and negatively charged colloids.
PACS: 52.35.Fp – Electrostatic waves and oscillations (e.g., ion-acoustic waves) / 72.30.+q – High-frequency effects; plasma effects / 61.72.Ww – Doping and impurity implantation in other materials / 82.70.Dd – Colloids
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2004