DMCA
Dispersion and Absorption of Longitudinal Electro-Kinetic Waves in Magnetized Ion-Implanted Semiconductor Plasmas (2006)
BibTeX
@MISC{Ghosh06dispersionand,
author = {S. Ghosh and Preeti Thakur},
title = {Dispersion and Absorption of Longitudinal Electro-Kinetic Waves in Magnetized Ion-Implanted Semiconductor Plasmas},
year = {2006}
}
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Abstract
The instability of longitudinal electro-kinetic wave that is propagating across the magnetic field B0 in ion-implanted group-IV semiconductor sam-ple consisting of non-drifting electrons, holes, and negatively charged colloids is investigated. Using hydrodynamic approach, a compact dispersion rela-tion D(ω,k) is derived for the same. The propagation and amplification characteristics of the wave in collision dominated regime are studied numer-ically in detail for slow and fast modes. Results show that the presence of transverse magnetic field is responsible for the modification of the existing wave spectra of the slow electro-kinetic branch. In case of fast electro-kinetic wave, the presence of magnetic field is found responsible for excitation and amplification of a new mode. It is also found that the magnetic field is re-sponsible for the conversion of two existing aperiodic modes into periodic ones. These novel periodic modes are found to be counter-propagating in nature. PACS numbers: 52.35.Fp, 61.72.Ww, 82.70.Dd 1.
Keyphrases
longitudinal electro-kinetic wave magnetized ion-implanted semiconductor plasma magnetic field transverse magnetic field novel periodic mode fast mode pac number amplification characteristic compact dispersion rela-tion periodic one ion-implanted group-iv semiconductor sam-ple consisting hydrodynamic approach magnetic field b0 new mode non-drifting electron slow electro-kinetic branch wave spectrum fast electro-kinetic wave aperiodic mode
