Helicon and Alfvén wave propagation in non-magnetic semiconductors and semi-metals: Active and passive waves

Propagation of Electromagnetic Waves in Semiconductor Plasmas under Crossed Steady Electric and Magnetic Fields

“…The wave propagating according to (24) along B, through the infinite medium turns out to be a coupled longitudinal-transverse wave type with nonzero longitudinal component A finite E , appears also for passive waves (i.e. for E, = 0 ) if q is inclined a t some direction to B, ([q x B,] =t= 0, off-axis) [4]. Because a non-zero 9, proves to be a necessary condition for the existence of the Landau damping [4] one should consequently expect a similar behaviour in the case of a wave propagation with q lying along B,, if only the additional condition [E, x B,] =+ 0 is fulfilled.…”

“…Supplementing these studies the aim of the present paper is to explore the effects of a weak dc electric field used in addition to B, on the propagation properties of electromagnetic waves developing under these conditions. I n contrast to the case E, = 0, B, + 0, where only passive waves can exist, active waves do propagate for E, + 0, Bo =# 0 [4]. Bok and Nozieres [5] undertook the first attempt to investigate the propagation of such waves in two component semiconductor plasmas under the condition of parallel applied dc fields ( [ E , x B,] = 0).…”

“…I n a very comprehensive manner Misawa [6] treated the propagation of active waves in solid state plasmas, who calculated the dielectric tensor for a quite general case of arbitrary direct,ions of wave propagation and dc electric field relative to B, by the hydrodynamic theory. Furthermore, Baynham and Boardman [4] on the one hand and Gueret [7] on the other derived the corresponding tensors for parallel and crossed dc fields, respectively. These investigations had one common result, namely the fact that for [E, x B,] =/= 0 unmixed purely longitudinal or transverse waves can as a rule no longer exist and are now chiefly replaced by coupled longitudinaltransverse wave types, which moreover under favourite circumstances may lead to instabilities.…”

Magnetosonic waves in ion trapped semiconductor chip plasma with effect of exchange correlation potential and relativistic degeneracy

“…dynamical measurements of Hall effect [33], measurements of effective mass [34] and studies of the Fermi surface [35]. The active and passive behavior of Helicon and Alfvén wave propagation in semiconductors and semi-metal like plasmas are studied by Baynham and Boardman [36]. Experimental investigations about the propagation of Alfvén waves in the anisotropic solid-state plasma of bismuth and Gallium alloy have been made respectively by Hess and Hinsch [37] and Alboussière et al [38].…”

Modulational stability of coupled non-linear helicon - acoustic waves in a piezoelectric semiconductor plasma

“…Since the discovery of helicon wave propagation in semiconductors, the interactions between it and other modes-acoustic as well as electromagnetic-of the propagating medium have received considerable attention. There exists a vast literature on helicon waves, including review articles and monographs on the propagation characteristics, experimental properties and applications of these waves (see, e.g., Morgan (1967), Kaner and Skobkov (1968), Maxfield (1969), Baynham and Boardman (1970), Petrashov (1984) and Platzman and Wolff (1973)). Most of the above-mentioned studies deal with the linear behaviour of these waves.…”