Interaction dependence of composite fermion effective masses

Details Interaction dependence of composite fermion effective masses Interaction dependence of composite fermion effective masses

1996-12-02

arxiv.org/abs/cond-mat/9612019v1

Phys. Rev. B55(1997)15372-15374

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, RevTeX, 5 figures

Scientific paper

10.1103/PhysRevB.55.15372

We estimate the composite fermion effective mass for a general two particle
potential r^{-\alpha} using exact diagonalization for polarized electrons in
the lowest Landau level on a sphere. Our data for the ground state energy at
filling fraction \nu=1/2 as well as estimates of the excitation gap at \nu=1/3,
2/5 and 3/7 show that m_eff \sim \alpha^{-1}.

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