Journal
PLASMA SOURCES SCIENCE & TECHNOLOGY
Volume 28, Issue 9, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1361-6595/ab419d
Keywords
capacitively coupled plasmas; electron power absorption; magnetic field; moments of Boltzmann equation; particle in cell simulations; Ohmic heating
Categories
Funding
- National Science Foundation [1700785, 1724941, 1917577]
- Directorate For Engineering
- Div Of Civil, Mechanical, & Manufact Inn [1724941] Funding Source: National Science Foundation
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [1700785] Funding Source: National Science Foundation
- Div Of Industrial Innovation & Partnersh
- Directorate For Engineering [1917577] Funding Source: National Science Foundation
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In low-pressure capacitively coupled discharges, a heating mode transition from a pressure-heating dominated state to an Ohmic-heating dominated state is known by applying a small transverse magnetic field. Here we demonstrate via particle-in-cell simulations and a moment analysis of the Boltzmann equation that the enhancement of Ohmic heating is induced by the Hall current in the E x B direction. As the magnetic field increases, the Ohmic heating in the E x B direction dominates the total electron power absorption. The Ohmic heating induced by the Hall current can be well approximated from the Ohmic heating of unmagnetized capacitively coupled discharges.
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