Abstract
We have measured the radio frequency Reσxx and Imσxx of a high mobility two-dimensional electron system (2DES) and observed a giant dielectric constant (κxx > 1 × 104) in the reentrant insulating phase (RIP) around the 1 5 fractional quantum Hall liquid. Results from temperature and excitation-level studies provide new evidence for the Wigner crystal (WC) model of the RIP, where the WC is strongly pinned by residual impurities in close proximity to the 2DES.
Original language | English (US) |
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Pages (from-to) | 619-623 |
Number of pages | 5 |
Journal | Solid State Communications |
Volume | 95 |
Issue number | 9 |
DOIs | |
State | Published - Sep 1995 |
All Science Journal Classification (ASJC) codes
- General Chemistry
- Condensed Matter Physics
- Materials Chemistry
Keywords
- A. heterojunction
- D. fractional quantum Hall effect
- D. quantum localization