Density-Induced Interchange of Anisotropy Axes at Half-Filled High Landau Levels

J. Zhu, W. Pan, H. L. Stormer, L. N. Pfeiffer, K. W. West

Research output: Contribution to journalArticle

Abstract

We observe density-induced [Formula presented] rotations of the anisotropy axes in transport measurements at half-filled high Landau levels in the two dimensional electron system, where stripe states are proposed ([Formula presented], [Formula presented], etc.). Using a field effect transistor, we find the transition density to be [Formula presented] at [Formula presented]. Hysteresis is observed in the vicinity of the transition. We construct a phase boundary in the filling factor magnetic field plane in the regime [Formula presented]. An in-plane magnetic field applied along either anisotropy axis always stabilizes the low density orientation of the stripes.

Original languageEnglish (US)
Number of pages1
JournalPhysical Review Letters
Volume88
Issue number11
DOIs
StatePublished - Jan 1 2002

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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