Instability of the positive column in a magnetic field and the `anomalous' diffusion effect

Theories of high‐latitude ionospheric irregularities: A review

“…However, the coupling of density gradients and magnetic field aligned currents can also lead to plasma instability through the current convective instability [Lehnert, 1958;Kadomtsev and Nedospasov, 1960]. …”

Long wavelength limit of the current convective instability

“…The current convective instability has recently been suggested as a mechanism to generate density irregularities in the auroral ionosphere The instability was initially studied to understand plasma disturbances in laboratory experiments [Lehnert, 1958;Hoh and Lehnert, 1960;Kadomtsev and Nedospasov, 1960] but has been more vigorously pursued lately in regard to ionospheric disturbances. The linear theory of the mode is reasonably well developed in the short wavelength limit (kL >> 1 where k is the wave number and L is the scale length of the density gradient).…”

Chaotic Dynamics of Instabilities in Solids

“…Electrons and holes are produced either by laser p~mping or by injecting contacts, creating a plasma of density ne = n h = 10 13 cm-3 • As the current Idc is increased by increasing the dc drive voltage V o ' spontaneous current oscillations I(t) are observed [34], attributed to a helical plasma density wave [35], shown schematically in Fig. 22 and believed to be similar to that in gas plasmas [36].…”