TITLE

Current driven instability in collisional dusty plasmas

AUTHOR(S)
Pandey, B. P.; Vladimirov, S. V.; Samarian, A.
PUB. DATE
November 2009
SOURCE
Physics of Plasmas;Nov2009, Vol. 16 Issue 11, p113708
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The current driven electromagnetic instability in a collisional, magnetized, dusty medium is considered in the present work. It is shown that in the presence of the magnetic field aligned current, the low-frequency waves in the medium can become unstable if the ratio of the current to the ambient field is larger than the light speed times the wave number. The growth rate of the instability depends upon the ratio of the Alfvén to the dust cyclotron frequency as well as on the ratio of the current density J to the dust charge density Zend, where Z is the number of electronic charge on the grain, e is the electron charge, and nd is the dust number density. The typical growth rate of this instability is on the order of Alfvén frequency which compares favorably with the electrostatic, cross-field current driven, Farley–Buneman instability and thus could play an important role in the Earth’s ionosphere.
ACCESSION #
45515232

 

Related Articles

  • A framework for moment equations for magnetized plasmas. Jeong-Young Ji; Held, Eric D. // Physics of Plasmas;Apr2014, Vol. 21 Issue 4, p1 

    Mathematical formalism to solve a system of general moment equations [J.-Y. Ji and E. D. Held, Phys. Plasmas 13, 102103 (2006); 16, 102108 (2009)] for magnetized plasmas is presented. A series of ordered moment equations are written using a perturbative expansion based on large cyclotron...

  • Dynamics of nonlinearly coupled magnetic-field-aligned electromagnetic electron-cyclotron waves near the zero-group-dispersion point in magnetized plasmas. Kourakis, I.; Shukla, P. K.; Morfill, G. E. // Physics of Plasmas;Aug2005, Vol. 12 Issue 8, p082303 

    The nonlinear coupling between two magnetic-field-aligned electromagnetic electron-cyclotron (EMEC) waves in plasmas is considered. Evaluating the ponderomotive coupling between the EMEC waves and quasistationary plasma density perturbations, a pair of coupled nonlinear Schrödinger equations...

  • Confinement properties of a low-beta discharge in a spindle cusp magnetic field. Bosch, Robert A.; Merlino, Robert L. // Physics of Fluids (00319171);Jun86, Vol. 29 Issue 6, p1998 

    An experimental study of the confinement properties of a low-(average) beta discharge plasma in a spindle cusp magnetic field is described. Electron and ion densities, space potentials, and plasma flow velocities were measured in the ring and point cusps. The leak width of the escaping plasma...

  • Electron random walk and collisional crossover in a gas in presence of electromagnetic waves and magnetostatic fields. Bhattacharjee, Sudeep; Dey, Indranuj; Paul, Samit // Physics of Plasmas;Apr2013, Vol. 20 Issue 4, p042118 

    This paper deals with random walk of electrons and collisional crossover in a gas evolving toward a plasma, in presence of electromagnetic (EM) waves and magnetostatic (B) fields, a fundamental subject of importance in areas requiring generation and confinement of wave assisted plasmas. In...

  • Plasma flow resulting from electron cyclotron resonance heating on a magnetic hill. Hooper Jr., E. B. // Physics of Plasmas;Dec95, Vol. 2 Issue 12, p4563 

    Analyzes the flow of low colissionality plasma down a magnetic hill during electron cyclotron resonance heating. Application of the study to the formation of an ion beam by plasma expansion in a magnetic nozzle; Ambipolar electric potential that accelerate the ions; Efficiency of the particle...

  • Wave propagation near a cyclotron resonance in a nonuniform equilibrium magnetic field. Cairns, R. A.; Lashmore-Davies, C. N.; Dendy, R. O.; Harvey, B. M.; Hastie, R. J.; Holt, H. // Physics of Fluids B: Plasma Physics;Nov91, Vol. 3 Issue 11, p2953 

    The inclusion of the variation of the equilibrium magnetic field across the Larmor orbits of the resonant particles is crucial for a self-consistent treatment of cyclotron resonance in plasmas. Two contrasting nonrelativistic self-consistent calculations [T. M. Antonsen and W. M. Manheimer,...

  • Dynamic and Debye shielding and anti-shielding. Hansen, C.; Reimann, A. B. // Physics of Plasmas;May96, Vol. 3 Issue 5, p1820 

    Studies dynamic and Debye shielding and anti-shielding in collisionless plasmas. Distribution functions in dynamic shielding; Anti-shielding of a positive test charge by a one-dimensional immobile-ion plasma; Collisionless shielding in one, two and three dimensions; Agreement of the...

  • On the possibility of electromagnetically induced transparency in a plasma. I. Infinite plasma. Gordon, D. F.; Mori, W. B.; Joshi, C. // Physics of Plasmas;Aug2000, Vol. 7 Issue 8 

    The theory of electromagnetically induced transparency (EIT) in a plasma [S. E. Harris, Phys. Rev. Lett. 77, 5357 (1996)] is examined in the context of an infinite system. A new dispersion relation is derived which accounts for relativistic effects in an overdense plasma. Several branches of the...

  • Nondispersive electromagnetic beams in plasmas. Hillion, P. // European Physical Journal D -- Atoms, Molecules, Clusters & Opti;Oct2003, Vol. 26 Issue 3, p297 

    We prove that different modes of nondispersive electromagnetic beams can propagate in a stationary isotropic plasma. But, a stationary plasma in a uniform magnetic field may only support a mode at frequencies less than the angular cyclotron frequency.

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics