Premium
Phase Transition in Dust Clusters with Different Charging Processes
Author(s) -
Gueddaoui H.,
Djebli M.
Publication year - 2013
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/ctpp.201200065
Subject(s) - yukawa potential , ground state , hamiltonian (control theory) , phase transition , charge (physics) , physics , materials science , condensed matter physics , atomic physics , quantum mechanics , mathematics , mathematical optimization
Random charging processes effects on ground‐state configurations and phase transition of a finite system have been investigated in terms of Hamiltonian system. The particles interact through a screened Yukawa potential and are confined by a two‐dimensional parabolic potential. Numerical simulation was performed at low temperature for charging processes by particles collection and by photoemission. Results show that the charge fluctuation changes significantly the ground‐state configurations only in the case of the photoemission charging process and give rise to a change on the melting characteristics. (© 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)