Splitting of long-wavelength modes of the fractional quantum hall liquid at ν=1/3

C. F. Hirjibehedin, Irene Dujovne, A. Pinczuk, B. S. Dennis, L. N. Pfeiffer, K. W. West

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Abstract

Resonant inelastic light scattering experiments at ν=1/3 reveal a novel splitting of the long-wavelength modes in the low energy spectrum of quasiparticle excitations in the charge degree of freedom. We find a single peak at small wave vectors that splits into two distinct modes at larger wave vectors. The evidence of well-defined dispersive behavior at small wave vectors indicates a coherence of the quantum fluid in the micron length scale. We evaluate interpretations of long-wavelength modes of the electron liquid.

Original languageEnglish (US)
Article number066803
JournalPhysical review letters
Volume95
Issue number6
DOIs
StatePublished - Aug 5 2005
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy

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