Fundamentals of dust-plasma interactions
2009 (English)In: Reviews of Modern Physics, ISSN 0034-6861, E-ISSN 1539-0756, Vol. 81, no 1, 25-44 p.Article in journal (Refereed) Published
Dustyplasmas are ubiquitous in low-temperature laboratory discharges as well asin the near-earth environment, planetary rings, and interstellar spaces. Inthis paper, updated knowledge of fundamentals of collective dust-plasma interactionsand several novel phenomena are presented that have been observedin laboratories and in space dusty plasmas. Mechanisms that areresponsible for the charging of dust grains are discussed, andthe fact that the dust charge perturbation is a newdynamical variable in a dusty plasma. The underlying physics ofdifferent forces that act on a charged dust grain isreviewed. In dusty plasmas, there are new attractive forces (e.g.,due to wakefield and ion focusing effects and dipole-dipole interactionsbetween unevenly charged dust rods). Furthermore, in the presence ofan ensemble of charged dust grains, there are collective dust-plasmainteractions featuring new waves (e.g., the dust acoustic wave, thedust ion-acoustic wave, the dust lattice wave, etc.), new instabilities,and coherent nonlinear structures (dust acoustic and dust ion-acoustic shocks,dust voids, and dust vortices), which are also discussed. Theoreticalmodels for numerous collective dust-plasma interactions are compared with existingobservations from laboratories and space environments.
Place, publisher, year, edition, pages
The American Physical Society , 2009. Vol. 81, no 1, 25-44 p.
IdentifiersURN: urn:nbn:se:umu:diva-24981DOI: 10.1103/RevModPhys.81.25OAI: oai:DiVA.org:umu-24981DiVA: diva2:228470