The effects of geometrical configurations on the head collision on nonlinear solitary pulses in a quantum semiconductor plasma: A case study on GaAs semiconductor

2018 ◽  
Vol 25 (1) ◽  
pp. 012108 ◽  
Author(s):  
E. F. EL-Shamy ◽  
F. S. Gohman ◽  
M. M. Alqahtani ◽  
S. AlFaify
2021 ◽  
Author(s):  
Haifa Al-Yousef

Abstract The properties and conditions for the appearance of some nonlinear waves in a three-dimensional semiconductor plasma are discussed, by studying the described plasma fluid system with quantum gradient forces and degraded pressures. Our analytical procedure is built on the reductive perturbation theory to obtain the Kadomtsev-Petvashvili equation for the fluid model and solving it using the direct integration method and the Bäcklund transform. Through different solution methods we got different nonlinear solutions describing different pulse profiles such as soliton, kink and explosive pulses. This model can be used to identify the potential disturbances in a semiconductor plasma.


2018 ◽  
Vol 73 (2) ◽  
pp. 135-141 ◽  
Author(s):  
M. Siddique ◽  
M. Jamil ◽  
A. Rasheed ◽  
F. Areeb ◽  
Asif Javed ◽  
...  

AbstractWe studied the influence of the classical relativistic beam of electrons on the hole acoustic wave (HAW) instability exciting in the semiconductor quantum plasmas. We conducted this study by using the quantum-hydrodynamic model of dense plasmas, incorporating the quantum effects of semiconductor plasma species which include degeneracy pressure, exchange-correlation potential and Bohm potential. Analysis of the quantum characteristics of semiconductor plasma species along with relativistic effect of beam electrons on the dispersion relation of the HAW is given in detail qualitatively and quantitatively by plotting them numerically. It is worth mentioning that the relativistic electron beam (REB) stabilises the HAWs exciting in semiconductor (GaAs) degenerate plasma.


2016 ◽  
Vol 23 (1) ◽  
pp. 012111 ◽  
Author(s):  
R. E. Tolba ◽  
N. A. El-Bedwehy ◽  
W. M. Moslem ◽  
S. K. El-Labany ◽  
M. E. Yahia

2017 ◽  
Vol 24 (6) ◽  
pp. 062103 ◽  
Author(s):  
Sourav Choudhury ◽  
Tushar Kanti Das ◽  
Malay Kr. Ghorui ◽  
Prasanta Chatterjee

2015 ◽  
Vol 91 (4) ◽  
Author(s):  
Yunliang Wang ◽  
Xiaodan Wang ◽  
Xiangqian Jiang

2014 ◽  
Vol 2014 ◽  
pp. 1-5
Author(s):  
Sandhya Chaudhary ◽  
Nilesh Nimje ◽  
Nishchhal Yadav ◽  
S. Ghosh

Dispersion and absorption characteristics of electrokinetic wave in unmagnetised extrinsic semiconductor with streaming carriers are analytically investigated. By using quantum hydrodynamic model, a linear dispersion relation is derived for longitudinal electrokinetic wave in colloids laden semiconductor plasma under slow electrokinetic mode regime. Results indicate that quantum effect through Bohm potential significantly modifies the dispersion and absorption characteristics of electrokinetic wave spectrum. The outcome is hoped to add substantially to the present knowledge of wave spectrum of longitudinal electrokinetic wave in colloids laden quantum semiconductor plasma subjected to a dc electric field along the direction of wave propagation.


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