𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Light scattering by magnetorotons of collective excitations in the fractional quantum Hall regime

✍ Scribed by Moonsoo Kang; A. Pinczuk; I. Dujovne; B.S. Dennis; L.N. Pfeiffer; K.W. West

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
84 KB
Volume
12
Category
Article
ISSN
1386-9477

No coin nor oath required. For personal study only.

✦ Synopsis

Magnetorotons in the dispersion curves of collective gap excitation modes of fractional quantum Hall liquids are measured by resonant inelastic light scattering. Two deep magnetoroton minima are observed at = 2 5 , while a single deep minimum is resolved at = 1 3 . The results support Chern-Simons and composite fermion calculations that predict multiple roton minima for states with ΒΏ 1 3 .

πŸ“œ SIMILAR VOLUMES

Light scattering observations of spin re
Light scattering observations of spin reversal excitations in the fractional quantum Hall regime
✍ Irene Dujovne; C.F. Hirjibehedin; A. Pinczuk; Moonsoo Kang; B.S. Dennis; L.N. Pf πŸ“‚ Article πŸ“… 2003 πŸ› Elsevier Science 🌐 English βš– 540 KB

Resonant inelastic light scattering experiments access the low lying excitations of electron liquids in the fractional quantum Hall regime in the range 2=5 $ n $ 1=3: Modes associated with changes in the charge and spin degrees of freedom are measured. Spectra of spin reversed excitations at filling

Resonant enhancement of inelastic light
Resonant enhancement of inelastic light scattering in the fractional quantum Hall regime at Ξ½=1/3
✍ C.F. Hirjibehedin; Irene Dujovne; I. Bar-Joseph; A. Pinczuk; B.S. Dennis; L.N. P πŸ“‚ Article πŸ“… 2003 πŸ› Elsevier Science 🌐 English βš– 439 KB

Strong resonant enhancements of inelastic light scattering from the long wavelength inter-Landau level magnetoplasmon and the intra-Landau level spin wave excitations are seen for the fractional quantum Hall state at n ΒΌ 1=3: The energies of the sharp peaks (FWHM 0.2 meV) in the profiles of resonant