The oblique and parallel propagation of fast sausage and kink magnetohydrodynamic (MHD) surface waves in an ideal magnetized plasma slab is studied taking into account the Hall term in the generalized Ohm’s law. It is found that, in the case of incompressible plasmas, the combining action of the Hall effect and the oblique wave propagation makes possible the existence of multivalued solutions to the dispersion relations of both MHD surface modes—some of them, corresponding to positive values of the transverse wave number undergo a “propagation stop” at specific (numerically found) full wave numbers. It is curious that such multivalued dispersion curves appear even at purely parallel propagation in low- plasmas Another peculiarity of these surface modes (in both cases) is that with the growing of the wave number they can change their nature—from bulk to pseudosurface (or pure surface) and leaky waves.
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June 1999
Research Article|
June 01 1999
Propagation of fast surface waves in an ideal Hall-magnetohydrodynamic plasma slab
Ivan Zhelyazkov;
Ivan Zhelyazkov
Faculty of Physics, Sofia University, BG–1164 Sofia, Bulgaria
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Gottfried Mann
Gottfried Mann
Astrophysikalisches Institut Potsdam, An der Sternwarte 16, D–14482 Potsdam, Germany
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Phys. Plasmas 6, 2340–2348 (1999)
Article history
Received:
November 11 1998
Accepted:
March 10 1999
Citation
Ivan Zhelyazkov, Gottfried Mann; Propagation of fast surface waves in an ideal Hall-magnetohydrodynamic plasma slab. Phys. Plasmas 1 June 1999; 6 (6): 2340–2348. https://doi.org/10.1063/1.873505
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