Abstract
We report the observation of an acute sensitivity of the anisotropic longitudinal resistivity of two-dimensional electron systems in half-filled high Landau levels to the magnitude and orientation of an in-plane magnetic field. In the third and higher Landau levels, at filling fractions ν=9/2, 11/2, etc., the in-plane field can lead to a striking interchange of the "hard" and "easy" transport directions. In the second Landau level the normally isotropic resistivity and the weak ν=5/2 quantized Hall state are destroyed by a large in-plane field and the transport becomes highly anisotropic.
Original language | English (US) |
---|---|
Pages (from-to) | 824-827 |
Number of pages | 4 |
Journal | Physical review letters |
Volume | 83 |
Issue number | 4 |
DOIs | |
State | Published - Jan 1 1999 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy