Finite-Temperature Density Instability at High Landau Level Occupancy

Tudor D. Stanescu, Ivar Martin, Philip Phillips

Research output: Contribution to journalArticlepeer-review


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 languageEnglish (US)
Pages (from-to)1288-1291
Number of pages4
JournalPhysical review letters
Issue number6
StatePublished - Feb 7 2000

ASJC Scopus subject areas

  • General Physics and Astronomy


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