An analysis of light scattering from a two-dimensional electron gas (2DEG) subject to a weak periodic magnetic modulation of strength B m and to a perpendicular uniform magnetic field B of arbitrary strength is presented. Raman spectra are calculated for (i) electron inter-Landau-level transitions,
Low-field magnetoresistance of strongly modulated two-dimensional electron gas
✍ Scribed by P. Středa; J. Kučera
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- English
- Weight
- 109 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0749-6036
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✦ Synopsis
The typical form of the low-field magnetoresistance anomaly induced by a strong onedimensional periodic modulation of the background potential is described. It is shown that the magnetoresistance peak due to the magnetic breakdown is always followed by a resistance increase at higher magnetic fields, for which ω c τ > 1.
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