Abstract
In a monolayer system a composite (c) fermion with two flux quanta (fluxons) is known to be generated at the Landau level occupation number (filling factor) $\ensuremath{\nu}=\frac{1}{2}.$ In a bilayer system two c fermions are bound via the phonon exchange to form a pair (p) c boson with parallel electron spins and the system of condensed pc bosons generates a quantum Hall effect (QHE) state at $\ensuremath{\nu}=\frac{1}{2}.$ Similar pc bosons are formed more efficiently at $\ensuremath{\nu}=1,$ and the QHE state developed is stronger. These QHE states become weaker at a tilted magnetic field since the pc boson has a p-wave-type charge distribution with the preferred axis along [001].
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