Two-Dimensional Electron-Hole Systems in a Strong Magnetic Field: Composite Fermion Picture for Multi-Component Plasmas

Details Two-Dimensional Electron-Hole Systems in a Strong Magnetic Field: Composite Fermion Picture for Multi-Component Plasmas Two-Dimensional Electron-Hole Systems in a Strong Magnetic Field: Composite Fermion Picture for Multi-Component Plasmas

1999-04-27

arxiv.org/abs/cond-mat/9904395v1

Phys. Rev. B 60, R11273 (1999)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

RevTeX + 3 EPS figures formatted with epsf.sty; submitted to Phys. Rev. Lett

Scientific paper

10.1103/PhysRevB.60.R11273

Electron-hole systems on a Haldane sphere are studied by exact numerical diagonalization. Low lying states contain one or more types of bound charged excitonic complexes Xk-, interacting through appropriate pseudopotentials. Incompressible ground states of such multi-component plasmas are found. A generalized multi-component Laughlin wavefunction and composite Fermion picture are shown to predict the low lying states of an electron-hole gas at any value of the magnetic field.

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