The density-induced 90° rotations of the anisotropy axes in two dimensional electron gases (2DEG) at half-filled high Landau levels were studied. A tunable density heterostructure insulated gate field effect transistor (HIGFET) was used to calculate the transition density and observe hysteresis in the vicinity of the transition. A density-induced reorientation of the stripe state at v = 9/2 was observed. The low density orientation of the stripes was stabilized by an in-plane magnetic field applied along either anisotropy axis.
|Original language||English (US)|
|Number of pages||4|
|Journal||Physical review letters|
|State||Published - Mar 18 2002|
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)