Partially spin-polarized quantum Hall effect in the filling factor range 1/3

Article

关键词: COMPOSITE FERMIONS;    HIERARCHY;    PARTICLE;    STATES;    FLUID;   

DOI  :  10.1103/PhysRevB.67.121305

来源: SCIE

【 摘 要 】

The residual interaction between composite fermions (CF's) can express itself through higher order fractional Hall effect. With the help of diagonalization in a truncated composite-fermion basis of low-energy many-body states, we predict that quantum Hall effect with partial spin polarization is possible at several fractions between nu = 1/3 and nu = 2/5. The estimated excitation gaps are approximately two orders of magnitude smaller than the gap at nu = 1/3, confirming that the inter-CF interaction is extremely weak in higher CF levels.

【 授权许可】

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