Fractional Quantum Hall Effect of Composite Fermions

W. Pan, H. L. Stormer, D. C. Tsui, L. N. Pfeiffer, K. W. Baldwin, K. W. West

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


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 languageEnglish (US)
Pages (from-to)4
Number of pages1
JournalPhysical review letters
Issue number1
StatePublished - 2003
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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