Abstract
We observe magnetotransport minima at Landau-level filling factors =1/4 and 3/4 distinctly different from the transport signatures of the fractional quantum Hall effect. These features are similar to the anomalies reported earlier at half-filled Landau levels. Tilting the magnetic field away from normal incidence has no observable effect on the strength of the minima. The strong similarity between the transport properties at =3/2, 3/4, 1/2, and 1/4 suggests a common origin.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 10468-10471 |
| Number of pages | 4 |
| Journal | Physical Review B |
| Volume | 46 |
| Issue number | 16 |
| DOIs | |
| State | Published - 1992 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics