Excitation gaps of incompressible composite fermion states: Approach to the Fermi sea. Scarola, V., W., Lee, S., Y., & Jain, J., K. Physical Review B, 66(15):1553201-1553206, 2002.
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Activation gaps are determined for fractional quantum Hall states\nwith up to seven filled Landau levels of composite fermions carrying\ntwo vortices, which correspond to electron filling factors of up\nto 7/15 along the sequence nu =n/(2n+1). Systems with as many as\n100 composite fermions are studied for this purpose. The relevance\nof the results to the issues of composite-fermion mass and the stability\nof fractional quantum Hall effect along the sequence n/(2n+1) is\ndiscussed.

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