Document Detail


Threshold phenomena in a throbbing complex plasma.
MedLine Citation:
PMID:  20868052     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
In complex plasmas, the trapped dust particle cloud is often characterized by a central dust-free region ("void"). The void induces a spatial inhomogeneity of the dust particle distribution and is at the origin of many intricate unstable phenomena. One type of this kind of behavior is the so-called heartbeat instability consisting of successive contractions and expansions of the void. This instability is characterized by a strong nonlinear dynamics which can reveal the occurrence of incomplete sequences corresponding to failed contractions. Experimental results based on high-speed imaging are presented for the first time and underline this threshold effect in both the dust cloud motion and the evolution of the plasma light emission.
Authors:
Maxime Mikikian; Lénaïc Couëdel; Marjorie Cavarroc; Yves Tessier; Laïfa Boufendi
Publication Detail:
Type:  Journal Article     Date:  2010-08-11
Journal Detail:
Title:  Physical review letters     Volume:  105     ISSN:  1079-7114     ISO Abbreviation:  Phys. Rev. Lett.     Publication Date:  2010 Aug 
Date Detail:
Created Date:  2010-09-27     Completed Date:  2011-01-11     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401141     Medline TA:  Phys Rev Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  075002     Citation Subset:  -    
Affiliation:
GREMI, Groupe de Recherches sur l'Energétique des Milieux Ionisés, UMR6606, CNRS/Université d'Orléans, 14 rue d'Issoudun, BP6744, 45067 Orléans Cedex 2, France. maxime.mikikian@univ-orleans.fr
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