期刊
IEEE TRANSACTIONS ON PLASMA SCIENCE
卷 29, 期 2, 页码 179-181出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/27.923689
关键词
dusty plasma; ion flow; magnetic field; self-rotation; shear
Spinning motion of a charged test dust particulate placed in a plasma sheath is studied. The shear of the ion flow velocity in the sheath is found to he responsible for a self-rotation of the particulate, resulting in a formation of a magnetic dipole moment. The presence of an external magnetic field will cause the spinning dust particulate to precess around the magnetic field direction, while the particulate will experience the cyclotron motion. The spinning frquency is on the order of 10 Hz, while the precession is much slower for the laboratory dust experimental conditions.
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