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The coherent Hall effect: Evolution of the Hall current of charge-carrier wavepackets in a semiconductor superlattice

Authors
  • Bauer, T.
  • Kolb, J.S.
  • Hummel, A.B.
  • Roskos, H.G.
  • Kosevich, Y.
  • Köhler, K.
Publication Date
Jan 01, 2003
Source
Fraunhofer-ePrints
Keywords
Language
English
License
Unknown
External links

Abstract

The Coherent Hall Effect denotes the transient current/voltage Hall response of impulsively excited coherent charge-carrier wavepackets in a solid. We studied this effect by THz-emission spectroscopy on a semiconductor superlattice in crossed electric and magnetic fields. Depending on the relative magnetic field strength, two regimes of coherent oscillatory charge-carrier motion are found, strictly separated from each other by a transition region where all oscillations are suppressed.

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