Abstract
In a [Formula presented] quantum well of density [Formula presented] we observed a fractional quantum Hall effect (FQHE) at [Formula presented] and [Formula presented], and weaker states at [Formula presented], [Formula presented], [Formula presented], and [Formula presented]. These sequences of fractions do not fit into the standard series of integral quantum Hall effects of composite fermions (CF) at [Formula presented]. They rather can be regarded as the FQHE of CFs attesting to residual interactions between these composite particles. In tilted magnetic fields the [Formula presented] state remains unchanged, strongly suggesting it to be spin polarized. The weak [Formula presented] state vanishes quickly with tilt.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 4 |
| Number of pages | 1 |
| Journal | Physical review letters |
| Volume | 90 |
| Issue number | 1 |
| DOIs | |
| State | Published - 2003 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy
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