Abstract
We have measured the small-signal AC response (from 300 kHz to 3 MHz) in the presence of a DC current in the reentrant insulating phase around Landau level filling factor ν = 1 5 in a high quality two-dimensional electron system in GaAs AlGaAs and observed a broad resonance on top of a background that changes from being capacitive at low currents to inductive at high currents. The resonance frequency which shows a sublinear dependence on the DC current, is interpreted as that of the washboard oscillations of the Wigner crystal.
Original language | English (US) |
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Pages (from-to) | 379-382 |
Number of pages | 4 |
Journal | Solid State Communications |
Volume | 96 |
Issue number | 6 |
DOIs | |
State | Published - Nov 1995 |
All Science Journal Classification (ASJC) codes
- General Chemistry
- Condensed Matter Physics
- Materials Chemistry
Keywords
- A. heterojunctions
- D. fractional quantum Hall effect
- D. quantum localization