Direct test of composite fermion model in quantum Hall systems

Details Direct test of composite fermion model in quantum Hall systems Direct test of composite fermion model in quantum Hall systems

1995-09-25

arxiv.org/abs/cond-mat/9509173v1

Physics

Condensed Matter

18 pages

Scientific paper

10.1103/PhysRevB.54.8699

We show that neutron scattering and Raman scattering experiments can unambiguously determine a composite fermion parameter, viz., the effective number of Landau Levels filled by the composite fermions. For this purpose, one needs partially polarized or more preferably unpolarized quantum Hall states. We further find that spin correlation function acts as an order parameter in the spin transition.

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