Journal article
Particle interaction measurements in a Coulomb crystal using caged-particle motion
Physical review letters, Vol.88(19), pp.195001-1950014
05/13/2002
DOI: 10.1103/PhysRevLett.88.195001
PMID: 12005638
Abstract
A technique for characterizing the particle interaction potential of a Coulomb crystal is developed. The mean-square displacement (MSD) is measured, showing both caged- and superdiffusive-particle motions. By subtracting the center of mass of neighboring particles in computing MSD, only short-wavelength particle motions are retained. This yields the lattice Einstein frequency, which contains information about the interparticle forces and potentials. Video measurements of particle motions in a complex (dusty) plasma are used to demonstrate the technique.
Details
- Title: Subtitle
- Particle interaction measurements in a Coulomb crystal using caged-particle motion
- Creators
- R A Quinn - Max Planck SocietyJ Goree - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Physical review letters, Vol.88(19), pp.195001-1950014
- DOI
- 10.1103/PhysRevLett.88.195001
- PMID
- 12005638
- ISSN
- 0031-9007
- eISSN
- 1079-7114
- Language
- English
- Date published
- 05/13/2002
- Academic Unit
- Physics and Astronomy; Mechanical Engineering
- Record Identifier
- 9984199753302771
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