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Title: Beam excited acoustic instability in semiconductor quantum plasmas

The instability of hole-Acoustic waves due to electron beam in semiconductor quantum plasmas is examined using the quantum hydrodynamic model. The quantum effects are considered including Bohm potential, Fermi degenerate pressure, and exchange potential of the semiconductor quantum plasma species. Our model is applied to nano-sized GaAs semiconductor plasmas. The variation of the growth rate of the unstable mode is obtained over a wide range of system parameters. It is found that the thermal effects of semiconductor species have significance over the hole-Acoustic waves.
Authors:
; ;  [1] ;  [2] ;  [3]
  1. Department of Physics, Government College University, Faisalabad 38000 (Pakistan)
  2. Department of Physics, COMSATS Institute of Information Technology, Lahore 54000 (Pakistan)
  3. Department of Applied Physics and Department of Bionanotechnology, Hanyang University, Ansan, Kyunggi-Do 426-791 (Korea, Republic of)
Publication Date:
OSTI Identifier:
22304514
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 21; Journal Issue: 6; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ELECTRON BEAMS; GALLIUM ARSENIDES; HOLES; HYDRODYNAMIC MODEL; INSTABILITY; NANOSTRUCTURES; POTENTIALS; QUANTUM PLASMA; SEMICONDUCTOR MATERIALS; SOUND WAVES; TEMPERATURE DEPENDENCE; VARIATIONS