Spin-charge separation in Quantum Hall Liquids

Abstract

We have investigated chiral edges of a quantum Hall(QH) liquid at filling factor ν=2. We find that spin and charge separate in the presence of the long-range Coulomb interaction, and the tunneling density of states(DOS) is given by D(ω)\sim [-1/\lnω]^{1/2}. The measurement of the temperature and voltage dependences of the tunneling current should reveal the presence spin-charge separation.

Standard RevTeX file, To be published in Physical Review B, Rapid Communications, 2 Figures available upon request

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• Topologically ordered zigzag nanoribbon: $e/2$ fractional edge charge, spin-charge separation, and ground state degeneracy
• Elastic precession of electronic spin states in interacting integer quantum Hall edge channels