Abstract
We study here the onset of charge density wave instabilities in quantum Hall systems at finite temperature for Landau level filling v > 4. Specific emphasis is placed on the role of disorder as well as on an in-plane magnetic field. Beyond some critical value, disorder is observed to suppress the charge density wave melting temperature to zero. In addition, we find that a transition from perpendicular to parallel stripes (relative to the in-plane magnetic field) exists when the electron gas thickness exceeds ≈60 Å. The perpendicular alignment of the stripes is in agreement with the experimental finding that the easy conduction direction is perpendicular to the in-plane field.
Original language | English (US) |
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Pages (from-to) | 1288-1291 |
Number of pages | 4 |
Journal | Physical review letters |
Volume | 84 |
Issue number | 6 |
DOIs | |
State | Published - Feb 7 2000 |
ASJC Scopus subject areas
- General Physics and Astronomy