Abstract
Plasma potential formation with electron cyclotron heating is investigated in a fully-ionized collisionless plasma flow along converging magnetic-field lines (monotonously increasing magnetic field) in the presence of a single electron cyclotron resonance (ECR) point. When the ECR point is located in a region of good curvature of the magnetic line, a potential hump (plug potential) with a potential dip (thermal barrier) is generated around the ECR point. This potential structure persists in the steady state, working as a plasma-flow dike potential. In case that the ECR point is located in a region of bad curvature, on the other hand, the dike potential is only transiently formed, and collapses gradually as low frequency curvature-driven instabilities grow.
| Original language | English |
|---|---|
| Pages (from-to) | 2060-2066 |
| Number of pages | 7 |
| Journal | journal of the physical society of japan |
| Volume | 69 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 2000 Jul |
Keywords
- Anisotropic electron temperature
- Converging magnetic-field lines
- Local electron cyclotron resonance
- Low-frequency oscillations
- Plasma-flow dike potential
ASJC Scopus subject areas
- Physics and Astronomy(all)