In nanodusty plasma, dust density is higher than normal dusty plasma. In numerical modeling, it is assumed that it is electron depleted dusty plasma. They ignore the electron charge in compared to dust charge while using the quasi-neutrality condition or Maxwell's eq. After ignoring the electron density, nanodusty plasma can be considered as a two component plasma. If we use this theoretical model in experiment then what will be the validity of it? In experimental nanodusty plasma, the charging mechanism is a continuous phenomena. It means that background free electrons loss to dust surface during experiments. Whiout free electrons, how does nanodusty plasma exist in experiments? Dynamics of nanodusty plasma depends on the charges on dust particles, which strongly depends on electron current. Eventhough the electron density is lower than dust density but dynamics of dust depends on the background plasma. Therefore, experimental nanodusty plasma will never be electron depleted. Using the theoretical model of electron depleted dusty plasma to fit the experimental results does not seem scientific sound..Please comments on it..
https://arxiv.org/pdf/1906.06255.pdf
Preprint Dust-acoustic rogue waves in an electron depleted plasma
http://www.tp4.ruhr-uni-bochum.de/~am/MYPAPERS/PoP04.pdf
Article Self-excited dust-acoustic waves in an electron-depleted nan...
https://www.cosmos.esa.int/documents/1866264/3219248/GoetzC_wp_comet_plasma_goetz.pdf/a0d930dd-6899-8260-54ab-da9430b912a8?t=1565184636114
By definition, plasma has coexisting negative and positive particles, whatever is the mechanism of keeping them separated. Electrons are much faster than positive ions (and dust particles). Averaged kinetc energy of electrons is usually~ 1 eV. So electrons will leave the plasma untill positive charge of the rest of the plasma prevent them from leaving, and they start oscillating around the positive plasma core, that is charged in accordance to the "temperature of electron gas".
Sorry telling basics. It may be that I missunderstand the question.
https://homepage.physics.uiowa.edu/~jgoree/papers/samsonov_void_expt_PRE01047.pdf
https://physik.uni-greifswald.de/storages/uni-greifswald/fakultaet/mnf/physik/ag_melzer/skript_public.pdf
Thank you Durrani..I read these papers but I wanted the answer of my question..
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