Journal article
Mach Cones in a Coulomb Lattice and a Dusty Plasma
Physical review letters, Vol.83(18), pp.3649-3652
11/1999
DOI: 10.1103/PhysRevLett.83.3649
Abstract
Mach cones, or V-shaped disturbances created by supersonic objects, have been detected in a two-dimensional Coulomb crystal. Electrically charged microspheres levitated in a glow-discharge plasma formed a dusty plasma, with particles arranged in a hexagonal lattice in a horizontal plane. Beneath this lattice plane, a sphere moved faster than the lattice sound speed. Mach cones were double, first compressive then rarefactive, due to the strongly coupled crystalline state. Molecular dynamics simulations using a Yukawa potential also show multiple Mach cones. © 1999 The American Physical Society.
Details
- Title: Subtitle
- Mach Cones in a Coulomb Lattice and a Dusty Plasma
- Creators
- D Samsonov - University of IowaJ Goree - University of IowaZ. W Ma - University of IowaA Bhattacharjee - University of IowaH. M Thomas - Max Planck SocietyG. E Morfill - Max Planck Society
- Resource Type
- Journal article
- Publication Details
- Physical review letters, Vol.83(18), pp.3649-3652
- DOI
- 10.1103/PhysRevLett.83.3649
- ISSN
- 0031-9007
- eISSN
- 1079-7114
- Language
- English
- Date published
- 11/1999
- Academic Unit
- Physics and Astronomy; Mechanical Engineering
- Record Identifier
- 9984199665002771
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