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Effect of Relativistic Mass Variation of the Electron on the Parametric Instability of Acoustic Waves in Transversely Magnetised Piezoelectric Semiconducting Plasmas
Author(s) -
Ghosh S.,
Dixit S.
Publication year - 1985
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221270124
Subject(s) - physics , electron , instability , plasma , excitation , atomic physics , magnetic field , quantum electrodynamics , laser , piezoelectricity , electric field , condensed matter physics , optics , mechanics , quantum mechanics , acoustics
The effect of relativistic mass variation of the electron and of a large transverse magnetostatic field on the parametric excitation of acoustic waves is investigated in a piezoelectric semiconducting plasma. The analysis is based on the hydrodynamic model of a plasma in the collision dominated regime for kl ≪ 1. In presence of the relativistic mass variation of electrons the conditions of instability gets modified and is obtained at a much higher value of the high frequency oscillatory electric field with larger growth rate compared with that in nonrelativistic limit. Numerical estimations are made for n‐InSb at 77 K when the crystal is irradiated with a 1.06 μm Nd: YAG laser.