A radio-frequency (rf) plasma sheath model in an oblique magnetic field is establishedand the energy distribution of ions (IED) incident on the rf sheath biased electrodes isnumerically investigated. The simulation results reveal that the external magnetic field can havea decisive impact on the ion flux and energy distribution of the sheath. The ion energy can betransferred between the perpendicular and parallel components under the action of a magneticfield.
Dynamics of dust in a plasma sheath with a magnetic field was investigated usinga single particle model.The result shows that the radius,initial position,initial velocity of thedust particles and the magnetic field do effect their movement and equilibrium position in theplasma sheath.Generally,the dust particles with the same size,whatever original velocity andposition they have,will locate at the same position in the end under the net actions of electrostatic,gravitational,neutral collisional,and Lorentz forces.But the dust particles will not locate in theplasma sheath if their radius is beyond a certain value.
Bohm criterion in a magnetized plasma sheath is investigated with a fluid model.The upper and lower limits for the sheath criterion in different states of applied magnetic field arestudied.The results from numerical simulation reveal that the magnetic field affects significantlythe ion Mach number.The variation of the ion Mach number with the incident angle of the ionsis also presented.
