Small amplitude ion-acoustic double layers with cold electron beam and q-nonextensive electrons |
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| Authors: | S Ali Shan H Saleem |
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| Institution: | 1. Theoretical Plasma Physics Division, PINSTECH, Nilore, 44000 Islamabad, Pakistan;2. National Centre for Physics (NCP), Shahdra Valley Road, 44000 Islamabad, Pakistan;3. Department of Mathematics and Applied Physics (DPAM), PIEAS, Islamabad, Pakistan |
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| Abstract: | Small amplitude ion-acoustic double layers in an unmagnetized and collisionless plasma consisting of cold positive ions, q-nonextensive electrons, and a cold electron beam are investigated. Small amplitude double layer solution is obtained by expanding the Sagdeev potential truncated method. The effects of entropic index q, speed and density of cold electron beam on double layer structures are discussed. |
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| Keywords: | Beam plasma interactions Double layers Sagdeev truncated method Non-Maxwellian plasmas Nonlinear structures q-nonextensive electrons |
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