This article is cited in 4 papers

Electronic and optical properties of semiconductors

Specific features of formation and evolution of a longitudinal autosoliton in $p$-InSb in a longitudinal magnetic field

I. K. Kamilov, A. A. Stepurenko, A. E. Gummetov

Daghestan Institute of Physics after Amirkhanov

Abstract: The effect of a longitudinal magnetic field on the formation and behavior of a longitudinal autosoliton in the excited nonequilibrium electron-hole plasma in $p$-InSb is studied experimentally. It is shown that, in a longitudinal magnetic field, the threshold characteristics of the formation of an autosoliton are reduced and the autosoliton takes on the diamagnetic properties that persist after removal of the magnetic field. In magnetic fields of 9.6 $\times$ 10$^3$–4.6 $\cdot$ 10$^4$ A m$^{-1}$, instabilities of the autosoliton current are excited, with a frequency in the range 2–20 kHz. In this case, the amplitude and frequency of these instabilities depend on the magnetic field. At elevated levels of excitation of the autosoliton and in increased magnetic fields, the instability of the longitudinal-autosoliton current exhibits synergetic properties.

Received: 30.09.2009
Accepted: 07.10.2009

 English version: Semiconductors, 2010, 44:6, 691–698

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