Evidence of Landau levels and interactions in low-lying excitations of composite fermions at 1/3 ≤ ν ≤ 2/5

Irene Dujovne, A. Pinczuk, Moonsoo Kang, B. S. Dennis, L. N. Pfeiffer, K. W. West

Research output: Contribution to journalArticlepeer-review

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Abstract

Resonant inelastic light scattering experiments access low-lying excitations of electron liquids in the full range of filling factors between states of the main sequence of the fractional quantum Hall effect (FQHE). It was found that near 2/5 and 1/3 evidence of lowest spin-split CF Landau levels of charged fermions with spin 1/2 that were similar to those of electrons. Spin-reversal energies determined from the spectral revealed sizable composite fermion interactions.

Original languageEnglish (US)
Article number036803
Pages (from-to)036803/1-036803/4
JournalPhysical review letters
Volume90
Issue number3
StatePublished - Jan 24 2003
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy

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