On the rotation of a dust particulate in an ion flow in a magnetic field

Author

Ishihara, Osamu ; Sato, Noriyoshi

Author_Institution

Dept. of Phys., Yokohama Nat. Univ., Japan

Volume

29

Issue

2

fYear

2001

fDate

4/1/2001 12:00:00 AM

Firstpage

179

Lastpage

181

Abstract

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 be 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 frequency is on the order of 10 Hz, while the precession is much slower for the laboratory dust experimental conditions

Keywords

dusty plasmas; magnetic field effects; plasma sheaths; plasma transport processes; cyclotron motion; dust particulate rotation; external magnetic field; ion flow; ion flow velocity; laboratory dust; magnetic dipole moment; magnetic field; magnetic field direction; plasma sheath; precession; self-rotation; spinning dust particulate; spinning frequency; spinning motion; Clouds; Dusty plasma; Frequency; Laboratories; Magnetic fields; Magnetic levitation; Magnetic moments; Physics; Spinning; Testing;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.923689

Filename

923689