Dust aggregates are formed in a laboratory plasma as monodisperse spheres are accelerated in a self‐excited dust density wave. The asymmetric charge on the aggregates causes them to rotate as they interact with the sheath electric field or other aggregates The charge and dipole moment can be estimated and compared to numerical models. “Dust molecules”, where two particles are electrostatically bound but not physically touching, are also observed.
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© 2011 American Institute of Physics.
2011
American Institute of Physics
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