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Optical properties of a two-dimensional electron gas at even-denominator filling fractions

Darren J. T. Leonard·Neil F. Johnson·V. Nikos Nicopoulos·F. J. Rodriguez
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Abstract

The optical properties of an electron gas in a magnetic field at filling fractions ν= {1\over 2m} (m=1,2,3...) are investigated using the composite fermion picture. The response of the system to the presence of valence-band holes is calculated. The shapes of the emission spectra are found to differ qualitatively from the well-known electron-hole results at zero magnetic field. In particular, the asymmetry of the emission lineshape is found to be sensitive to the hole-composite fermion plane separation.

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Darren J. T. Leonard, Neil F. Johnson, V. Nikos Nicopoulos, F. J. Rodriguez. 1996-12-11. Optical properties of a two-dimensional electron gas at even-denominator filling fractions. https://doi.org/10.1103/physrevb.55.7141

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