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Photon-drag effect in a two-dimensional electron gas in high magnetic fields

โœ Scribed by J. Koch; A.D. Wieck

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
87 KB
Volume
25
Category
Article
ISSN
0749-6036

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โœฆ Synopsis

We present the first measurements concerning the photon drag effect in a two-dimensional electron gas based on intersubband transitions in high magnetic fields. It is shown that the excitation mechanism of the drag voltage in a magnetic field differs obviously from the case of zero magnetic field. The longitudinal as well as the Hall drag voltage show strong oscillations around zero when the magnetic field is swept. Both consist of a B-symmetrical and an antisymmetrical part with the same periodicity in B as the magnetoresistance R x x . The drag voltage oscillations are strongly correlated to the relative position of Fermi energy and Landau levels and are independent of the photon energy in the range of usable laser lines.

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