Effective mass and g factor of four-flux-quanta composite Fermions

A. S. Yeh, H. L. Stormer, D. C. Tsui, L. N. Pfeiffer, K. W. Baldwin, K. W. West

Research output: Contribution to journalArticlepeer-review

52 Scopus citations


We investigate the properties of composite fermions with four attached flux quanta through tilted-field experiments near Landau level filling factor ν=3/4. The observed collapse of fractional quantum Hall gaps in the vicinity of this quarter-filling state can be comprehensively understood in terms of composite fermions with mass and spin. Remarkably, the effective mass and g factor of these four-flux-quanta composite fermions around ν=3/4 are very similar to those of two-flux-quanta composite fermions around ν=3/2.

Original languageEnglish (US)
Pages (from-to)592-595
Number of pages4
JournalPhysical review letters
Issue number3
StatePublished - 1999
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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