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  • 1995-1999  (42)
  • 1980-1984  (3)
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  • 1
    Electronic Resource
    Electronic Resource
    A class of stationary nonlinear dusty plasma equilibria (1999)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 6 (1999), S. 2950-2953 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: It is shown that nonparallel density and temperature gradients can produce magnetic fields in dusty plasmas. Spontaneously created magnetic fields can be maintained if there exists plasma vorticity. In order to understand this phenomena, a self-consistent dusty plasma equilibrium model is constructed by employing a kinetic description and invoking the Hamiltonian approach. Stationary nonlinear dusty plasma equilibria contain specific profiles for the plasma number density, the plasma current, and the magnetic field. The relevance of this investigation to low-temperature laboratory dusty and space plasmas is discussed. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.873542
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Effect of dust charge fluctuations on energy loss of a test dust charged particulate in a dusty plasma (1999)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 6 (1999), S. 1409-1414 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The energy loss of a test charged particulate in an unmagnetized dusty plasma is calculated by employing the dusty dielectric response function which accounts for the dust charge fluctuation. It is found that the dust charge fluctuation introduces a new contribution to the energy loss, which enhances it for fast charge relaxation rates and reduces it for slow rates. In the energy loss curves drawn against the test charge velocity, some peaks are observed. These peaks diminish for large charge relaxation rates. Possible explanation for these peaks is also discussed. These results may be useful for understanding coagulation of dust grains in space and laboratory plasmas and for transport of dust particulates in the planetary rings. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.873390
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Wake potentials in nonuniform dusty magnetoplasmas (1998)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 5 (1998), S. 4205-4208 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: It is shown that the presence of equilibrium density gradients in a magnetized dusty plasma can introduce new types of drift-like waves. These give rise to oscillatory wake-potentials, which can focus ions and attract dust grains of similar polarity. Using a test particle approach, typical profiles for wake-potentials are obtained in several interesting cases. It is found that the effective attraction length is independent of the magnetic field strength for high density dusty plasmas, whereas it is larger for larger magnetic fields in a low-density dusty plasma. Furthermore, the dust attraction takes place predominantly in the inhomogeneous region of the dusty plasma having smaller lattice periodicity for smaller scale length of the density inhomogeneity. © 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.873155
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Comment on "Is dust acoustic wave a new plasma acoustic mode?" [Phys. Plasmas 4, 3427 (1997)] (1998)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 5 (1998), S. 1220-1221 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.873092
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Magnetic electron drift vortex modes with the ion dynamics (1997)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 4 (1997), S. 2302-2304 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A new dispersion relation for low-frequency magnetic electron drift modes (MEDV) in a nonuniform plasma is derived by incorporating the ion dynamics. It is shown that the ion dynamics introduces new classes of instabilities when the wave frequency either lies between the electron and ion plasmas frequencies or is close to the ion plasma frequency. The modified MEDV modes involving the ion motion can cause nonthermal particle as well as electron heat transports. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.872397
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Brownian motion of a dust particle in a plasma (1997)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 4 (1997), S. 674-677 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A new version of the Brownian motion describing the motion of a dust particle in a turbulent plasma is considered. Here, the stochastic force acting on the dust particle is due to the fluctuations of the plasma potential and not due to the usual molecular collisions. Another significant difference is due to the fact that the dust electric charge is not constant but fluctuates with the potential. A four-dimensional formulation of the problem is also given. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.872162
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Solitary potentials in dusty plasmas (1996)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 3 (1996), S. 702-704 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: It is found that a dusty plasma with inertial dust fluid and Boltzmann distributed ions admits only negative solitary potentials associated with nonlinear dust-acoustic waves. The dynamics of small-amplitude disturbances is governed by the Korteweg–de Vries (KdV) equation, the stationary solution of which assumes the inverted bell-shaped secant hyperbolic squared profile. The associated dust and ion density perturbations are, on the other hand, positive. The solitary potentials can be identified as nonlinear structures in low-temperature dusty plasmas such as those in laboratory and astrophysical environments. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.871905
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Amplitude modulation of dust-lattice waves in a plasma crystal (1998)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 5 (1998), S. 2578-2581 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: It is found that the nonlinear dynamics of amplitude-modulated dispersive dust lattice waves (DLW) is governed by a nonlinear Schrödinger equation. The latter exhibits that a constant amplitude carrier dust lattice wave is modulationally stable, and that the modulated DLW packet propagates in the form of either an envelope dark soliton or an envelope shock. The relevance of our theoretical investigation to simulation studies as well as to a laboratory dusty plasma experiment is pointed out. © 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.872943
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  • 9
    Electronic Resource
    Electronic Resource
    Erratum: "A class of stationary nonlinear dusty plasma equilibria" [Phys. Plasmas 6, 2950 (1999)] (1999)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 6 (1999), S. 4129-4129 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.873723
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    Paper (German National Licenses)
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  • 10
    Electronic Resource
    Electronic Resource
    Modulational instability of incoherent photons in high-temperature electron-positron plasmas (1998)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 5 (1998), S. 1554-1556 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The nonlinear interaction between random phase photons and sound waves in ultra-relativistically hot electron-positron plasmas is considered. The modulational instability of a broad photon spectrum is investigated. Explicit expressions for the growth rates are obtained in limiting cases. © 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.872814
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    Paper (German National Licenses)
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