Spin-singlet to spin-polarized phase transition at ν = {2}/{3}: flux-trading in action

  title={Spin-singlet to spin-polarized phase transition at $\nu$ = \{2\}/\{3\}: flux-trading in action},
  author={C. Nayak and Frank Wilczek},
  journal={Nuclear Physics},
Integral and fractional quantum Hall Ising ferromagnets
We compare quantum Hall systems at filling factor 2 to those at filling factors 2/3 and 2/5, corresponding to the exact filling of two lowest electron or composite fermion (CF) Landau levels. The two
Transport gap in a v=1/3 quantum Hall system: a probe for skyrmions
The dependence of the activated gap on magnetic field is studied for the fractional filling factor~1/3. By comparing the experimental results with results from exact diagonalization calculations we


Mixed-spin incompressible states in the fractional quantum Hall effect.
  • Wu, Dev, Jain
  • Physics
    Physical review letters
  • 1993
This work provides a theory of the general structure of mixed-spin fractional quantum Hall states, which are relevant at low magnetic fields. This, in particular, leads to a microscopic description
LETTER TO THE EDITOR: Spin-dependent fractional QHE states in the N=0 Landau level
Spin assignments of fractional QHE states in the N=0 Landau level are determined from finite-size calculations of the Coulomb energy. There is a spin-unpolarised ground state at 2/3 filling, with
Theory of the half-filled Landau level.
A two-dimensional electron system in an external magnetic field, with Landau-level filling factor \ensuremath{\nu}=1/2, can be transformed to a mathematically equivalent system of fermions
Fractional statistics and anyon superconductivity
The occurrence of fractional statistics has been discovered in more and more quantum field theory models, including some of the most geometrical and canonical ones. In a remarkable case, the
Compressible phase of a double-layer electron system with total Landau-level filling factor 1/2.
  • Bonesteel
  • Physics
    Physical review. B, Condensed matter
  • 1993
Within the random-phase approximation a new, low-lying, diffusive mode, not present in the \ensuremath{\nu}=1/2 single-layer system, is found, which leads to more singular low-energy scattering and an attractive pairing interaction between fermions in different layers which grows stronger as the layer spacing is decreased.
Composite-fermion approach for the fractional quantum Hall effect.
  • Jain
  • Physics
    Physical review letters
  • 1989
It is proposed that the fractional quantum Hall effect of electrons can be physically understood as a manifestation of the integer quantumHall effect of composite fermionic objects consisting of electrons bound to an even number of flux quanta.
It is argued that the incompressibility of fractional quantized Hall states, and the qualitative form of their wavefunction, can be understood by an argument based on adiabatic localization of
Experimental determination of fractional charge e/q for quasiparticle excitations in the fractional quantum Hall effect.
La prediction de Laughlin-Haldane selon laquelle la charge e* des quasi-particules excitees a travers la bande interdite des etats fondamentaux dus a l'effet Hall quantique fractionnaire a ν=p/q est
Spin configurations and quasiparticle fractional charge of fractional-quantum-Hall-effect ground states in the N=0 Landau level.
  • Clark, Haynes, Foxon
  • Materials Science, Mathematics
    Physical review letters
  • 1989
Spin configurations of fractions zl\ensuremath{\nu}l2 are examined by angular and n-dependent activation studies to quantify a dramatic difference between (4/3 and (5/3) states consistent with assignments.