Magnetizing a complex plasma without a magnetic field.
Phys Rev Lett
; 109(15): 155003, 2012 Oct 12.
Article
em En
| MEDLINE
| ID: mdl-23102318
ABSTRACT
We propose and demonstrate a concept that mimics the magnetization of the heavy dust particles in a complex plasma while leaving the properties of the light species practically unaffected. It makes use of the frictional coupling between a complex plasma and the neutral gas, which allows us to transfer angular momentum from a rotating gas column to a well-controlled rotation of the dust cloud. This induces a Coriolis force that acts exactly as the Lorentz force in a magnetic field. Experimental normal mode measurements for a small dust cluster with four particles show excellent agreement with theoretical predictions for a magnetized plasma.
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En
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2012
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Article