Phonon spectrum in a plasma crystal

S. Nunomura; J. Goree; S. Hu; X. Wang; A. Bhattacharjee; K. Avinash

doi:10.1103/PhysRevLett.89.035001

Phonon spectrum in a plasma crystal

S. Nunomura, J. Goree, S. Hu, X. Wang, A. Bhattacharjee, K. Avinash

Research output: Contribution to journal › Article › peer-review

186 Scopus citations

Abstract

The phonon spectrum due to random particle motion in a plasma crystal was measured. The crystal was made of negatively charged microspheres immersed in a plasma at a low gas pressure. It was found that the phonons obey a dispersion relation that assumed a Yukawa interparticle potential. Also, the wave energy measured in Fourier space was found to be approximately twice as large as the particle kinetic energy measured in configuration space.

Original language	English (US)
Article number	035001
Pages (from-to)	350011-350014
Number of pages	4
Journal	Physical review letters
Volume	89
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevLett.89.035001
State	Published - Jul 15 2002
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.89.035001

Cite this

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title = "Phonon spectrum in a plasma crystal",

abstract = "The phonon spectrum due to random particle motion in a plasma crystal was measured. The crystal was made of negatively charged microspheres immersed in a plasma at a low gas pressure. It was found that the phonons obey a dispersion relation that assumed a Yukawa interparticle potential. Also, the wave energy measured in Fourier space was found to be approximately twice as large as the particle kinetic energy measured in configuration space.",

author = "S. Nunomura and J. Goree and S. Hu and X. Wang and A. Bhattacharjee and K. Avinash",

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AU - Nunomura, S.

AU - Goree, J.

AU - Hu, S.

AU - Wang, X.

AU - Bhattacharjee, A.

AU - Avinash, K.

PY - 2002/7/15

Y1 - 2002/7/15

N2 - The phonon spectrum due to random particle motion in a plasma crystal was measured. The crystal was made of negatively charged microspheres immersed in a plasma at a low gas pressure. It was found that the phonons obey a dispersion relation that assumed a Yukawa interparticle potential. Also, the wave energy measured in Fourier space was found to be approximately twice as large as the particle kinetic energy measured in configuration space.

AB - The phonon spectrum due to random particle motion in a plasma crystal was measured. The crystal was made of negatively charged microspheres immersed in a plasma at a low gas pressure. It was found that the phonons obey a dispersion relation that assumed a Yukawa interparticle potential. Also, the wave energy measured in Fourier space was found to be approximately twice as large as the particle kinetic energy measured in configuration space.

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Phonon spectrum in a plasma crystal

Abstract

All Science Journal Classification (ASJC) codes

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