title: Measurements of forces acting on suspended microparticles in the void region of a complex plasma.
abstract: A laboratory experiment has been performed in which a temperature gradient is used to generate a large central void in a rf-generated complex plasma. Through the use of laser flashing techniques, two-dimensional velocity vectors have been obtained from particles falling from the top to the bottom of the void. These particles are used to generate a two-dimensional map of the acceleration, and consequently the net forces, that act upon particles in the void.
authors.affiliation: Department of Physics, Auburn University, Auburn, Alabama 36849, USA. etjr@physics.auburn.edu
authors.forename: E
authors.initials: E
authors.lastname: Thomas
authors.forename: B M
authors.initials: BM
authors.lastname: Annaratone
authors.forename: G E
authors.initials: GE
authors.lastname: Morfill
authors.forename: H
authors.initials: H
authors.lastname: Rothermel