Transition from ν = 8 / 5 to ν = 5 / 3 in the low Zeeman energy limit
نویسنده
چکیده
Skyrmions in the FQHE at filling fractions above ν = 1/3 are studied within the anyon model and by exact diagonalization. Relations to the composite fermion theory are pointed out. We find that unpolarized quasiparticles above ν = 1/3 are stable below B ≈ 0.02T . At low Zeeman energy the polarization in the range ν = 8/5 . . . 5/3 is found to be a linear function of the filling factor. We also reexamine the energy and wave function of skyrmions at ν = 1 by a new method.
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