Effect of Density Gradient on the Acousto-Electric Wave Instability in Ion-Implanted Semiconductor Plasmas

• Authors: S Ghosh , Pragati Khare
• Languages of publication: EN

Abstracts

EN

Using hydrodynamic model of inhomogeneous plasma, an analytical investigation of excitation of acousto-electric mode was made in n-type piezoelectric ion-implanted semiconductor plasma. By employing the multi-fluid balance equations along with the elastic and Maxwell equations, a compact dispersion relation for the cases in which colloidal grains are either stationary (ϑ_{0d}=0) or streaming (ϑ_{0d}≢0$) is derived. We find that the choice of homogeneous medium is favorable in achieving higher acoustic gain per radian and the results of the investigation should be useful in understanding the characteristics of longitudinal acousto-electric wave in ion-implanted piezoelectric semiconductor whose main constituents are electrons and negatively charged colloidal particles.

Keywords

EN

61.72.Vv; 72.30.+q; 82.70.Dd

Discipline

• 82.70.Dd: Colloids
• 72.30.+q: High-frequency effects; plasma effects

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2006
• Volume: 109
• Issue: 2
• Pages: 187-197

Dates

published

2006-02

received

2005-08-17

Contributors

author

S Ghosh

• School of Studies in Physics, Vikram University, Ujjain 456010, India

author

Pragati Khare

• School of Studies in Physics, Vikram University, Ujjain 456010, India

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Identifiers

DOI

10.12693/APhysPolA.109.187