A note on the binary interaction potential in complex (dusty) plasmas
Abstract
The effect of ion-neutral collisions on the potential of interaction between a pair of negatively charged grains in isotropic weakly collisional plasmas is investigated. Two interaction mechanisms are considered: Electric repulsion between like-charged grains and attraction due to the so-called ''ion shadow'' effect. It is demonstrated that in the presence of collisions, both interaction potentials exhibit Coulomb-like {proportional_to}r{sup -1} decay at large distances. A necessary condition for the existence of long-range attraction is derived. The obtained results are then used to reconsider the possibility of liquid-vapor critical point occurrence in complex plasmas.
- Authors:
-
- Max-Planck-Institut fuer Extraterrestrische Physik, D-85741 Garching (Germany)
- Publication Date:
- OSTI Identifier:
- 21120547
- Resource Type:
- Journal Article
- Journal Name:
- Physics of Plasmas
- Additional Journal Information:
- Journal Volume: 15; Journal Issue: 8; Other Information: DOI: 10.1063/1.2967483; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COLLISIONAL PLASMA; COLLISIONS; IONS; LIQUIDS; POTENTIALS; SHADOW EFFECT; VAPORS
Citation Formats
Khrapak, S A, and Morfill, G E. A note on the binary interaction potential in complex (dusty) plasmas. United States: N. p., 2008.
Web. doi:10.1063/1.2967483.
Khrapak, S A, & Morfill, G E. A note on the binary interaction potential in complex (dusty) plasmas. United States. https://doi.org/10.1063/1.2967483
Khrapak, S A, and Morfill, G E. 2008.
"A note on the binary interaction potential in complex (dusty) plasmas". United States. https://doi.org/10.1063/1.2967483.
@article{osti_21120547,
title = {A note on the binary interaction potential in complex (dusty) plasmas},
author = {Khrapak, S A and Morfill, G E},
abstractNote = {The effect of ion-neutral collisions on the potential of interaction between a pair of negatively charged grains in isotropic weakly collisional plasmas is investigated. Two interaction mechanisms are considered: Electric repulsion between like-charged grains and attraction due to the so-called ''ion shadow'' effect. It is demonstrated that in the presence of collisions, both interaction potentials exhibit Coulomb-like {proportional_to}r{sup -1} decay at large distances. A necessary condition for the existence of long-range attraction is derived. The obtained results are then used to reconsider the possibility of liquid-vapor critical point occurrence in complex plasmas.},
doi = {10.1063/1.2967483},
url = {https://www.osti.gov/biblio/21120547},
journal = {Physics of Plasmas},
issn = {1070-664X},
number = 8,
volume = 15,
place = {United States},
year = {Fri Aug 15 00:00:00 EDT 2008},
month = {Fri Aug 15 00:00:00 EDT 2008}
}
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