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Shell Structure of Yukawa Balls
Author(s) -
Baumgartner H.,
Kählert H.,
Golobnychiy V.,
Henning C.,
Käding S.,
Melzer A.,
Bonitz M.
Publication year - 2007
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.200710038
Subject(s) - yukawa potential , cluster (spacecraft) , shell (structure) , ion , plasma , charge (physics) , spherical shell , physics , work (physics) , dusty plasma , statistical physics , computational physics , chemical physics , atomic physics , materials science , thermodynamics , quantum mechanics , computer science , composite material , programming language
Spherical crystals continue to attract increasing interest in many fields, including trapped ions and dusty plasmas. These strongly coupled systems are excellent objects to study fundamental interactions and interesting correlation phenomena while they are relatively easy to realize and observe. Experiments and simulations show a spherical arrangement in nested shells. This work discusses new experimental and simulation results for small systems ( N ≤ 54) as well as the influence of temperature and charge fluctuations on the shell populations. Finally, the cluster configurations are compared with an analytical shell model which is able to predict shell populations and energies for larger clusters. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)