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

Hirjibehedin, CF; Dujovne, I; Pinczuk, A; Dennis, BS; Pfeiffer, LN; West, KW; (2005) Splitting of long-wavelength modes of the fractional quantum hall liquid at nu=1/3. PHYS REV LETT , 95 (6) , Article 066803. 10.1103/PhysRevLett.95.066803. Green open access

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Abstract

Resonant inelastic light scattering experiments at nu=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.

Type: Article
Title: Splitting of long-wavelength modes of the fractional quantum hall liquid at nu=1/3
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.95.066803
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.95.066803
Language: English
Additional information: © 2005 The American Physical Society
Keywords: COLLECTIVE EXCITATIONS, COMPOSITE FERMIONS, STATE, ENHANCEMENT, SYSTEM, V=1/3, SPIN
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology
URI: https://discovery.ucl.ac.uk/id/eprint/9267
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