Composite Fermion Hall Conductance at $ν=1/2$

Details Composite Fermion Hall Conductance at $ν=1/2$ Composite Fermion Hall Conductance at $ν=1/2$

1996-07-22

arxiv.org/abs/cond-mat/9607153v1

Physics

Condensed Matter

9 pages, RevTeX, 4 PS figures

Scientific paper

We show that in the limit of vanishing bare electron effective mass, and in
the presence of particle-hole symmetric disorder (which can be of vanishing
strength), the composite fermion Hall conductance is constrained to be
$-{1\over 2}\frac{e^2}{h}$. We discuss the implications of this results for the
existence and nature of a composite Fermi liquid in the lowest Landau level.

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