Effects of parallel ion dynamics on drift-Alfvén vortices in plasmas

1988 ◽  
Vol 39 (1) ◽  
pp. 151-155 ◽  
Author(s):  
P. K. Shukla
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Ion Dynamics ◽  
Ion Motion

Drift-Alfvén vortices are investigated, taking into account the nonlinear ion dynamics parallel to the external magnetic field. It is found that the parallel ion motion restricts the vortex speed.

Optical Mixing in a Magnetized Plasma

1971 ◽  
Vol 49 (16) ◽  
pp. 2187-2193 ◽  
Author(s):  
J. Meyer ◽  
B. Stansfield
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Spectral Density ◽  
Electromagnetic Waves ◽  
Basic Assumption ◽  
Magnetized Plasma ◽  
Ion Motion ◽  
Resonance Frequencies ◽  
Optical Mixing ◽  
The Magnetic Field

The nonlinear interactions of two electromagnetic waves resulting in the excitation of electrostatic oscillations in a magnetized homogeneous plasma are studied. A general expression for the spectral density of the induced fluctuations is derived which includes the effect of the ion motion and an externally applied uniform magnetic field. One basic assumption made is that the frequencies of the electromagnetic waves are much larger than any of the plasma resonance frequencies. Numerical calculations are carried out for the specific case where the induced k vector is parallel to the external magnetic field and the results are presented in a series of graphs. The effect of the ion motion for this case is discussed in detail. Some aspects of the case where the induced k vector is perpendicular to the magnetic field are also discussed. It is found that both—the ion motion and an external magnetic field—can significantly influence the spectral density of the fluctuations.

RECOIL IMPLANTATION MÖSSBAUER EXPERIMENT ON 57Fe IN Ge IN THE PRESENCE OF AN EXTERNAL MAGNETIC FIELD

1980 ◽  
Vol 41 (C1) ◽  
pp. C1-445-C1-445
Author(s):  
G. Langouche ◽  
N. S. Dixon ◽  
L. Gettner ◽  
S. S. Hanna
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Recoil Implantation
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