Energy gaps of the fractional quantum hall effect measured by magneto-optics

I. V. Kukushkin; N. J. Pulsford; K. von Klitzing; K. Ploog; R. J. Haug; S. Koch; V. B. Timofeev

doi:10.1209/0295-5075/18/1/012

Energy gaps of the fractional quantum hall effect measured by magneto-optics

I. V. Kukushkin, N. J. Pulsford, K. von Klitzing, K. Ploog, R. J. Haug, S. Koch, V. B. Timofeev

Optical Sciences, College of

Research output: Contribution to journal › Letter › peer-review

19 Scopus citations

Abstract

We have studied the magnetic-field dependence of the spectral position of the luminescence line due to radiative recombination of two-dimensional electrons in the extreme quantum limit. We verify the recent theoretical prediction that downward cusps occur in the spectral position of the line at fractional filling factors. From the strength of these cusps we derive values for the Fractional Quantum Hall Effect energy gaps and their dependence on the magnetic field.

Original language	English (US)
Pages (from-to)	63-68
Number of pages	6
Journal	EPL
Volume	18
Issue number	1
DOIs	https://doi.org/10.1209/0295-5075/18/1/012
State	Published - Feb 1992

ASJC Scopus subject areas

Physics and Astronomy(all)

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abstract = "We have studied the magnetic-field dependence of the spectral position of the luminescence line due to radiative recombination of two-dimensional electrons in the extreme quantum limit. We verify the recent theoretical prediction that downward cusps occur in the spectral position of the line at fractional filling factors. From the strength of these cusps we derive values for the Fractional Quantum Hall Effect energy gaps and their dependence on the magnetic field.",

author = "Kukushkin, {I. V.} and Pulsford, {N. J.} and {von Klitzing}, K. and K. Ploog and Haug, {R. J.} and S. Koch and Timofeev, {V. B.}",

year = "1992",

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T1 - Energy gaps of the fractional quantum hall effect measured by magneto-optics

AU - Kukushkin, I. V.

AU - Pulsford, N. J.

AU - von Klitzing, K.

AU - Ploog, K.

AU - Haug, R. J.

AU - Koch, S.

AU - Timofeev, V. B.

PY - 1992/2

Y1 - 1992/2

N2 - We have studied the magnetic-field dependence of the spectral position of the luminescence line due to radiative recombination of two-dimensional electrons in the extreme quantum limit. We verify the recent theoretical prediction that downward cusps occur in the spectral position of the line at fractional filling factors. From the strength of these cusps we derive values for the Fractional Quantum Hall Effect energy gaps and their dependence on the magnetic field.

AB - We have studied the magnetic-field dependence of the spectral position of the luminescence line due to radiative recombination of two-dimensional electrons in the extreme quantum limit. We verify the recent theoretical prediction that downward cusps occur in the spectral position of the line at fractional filling factors. From the strength of these cusps we derive values for the Fractional Quantum Hall Effect energy gaps and their dependence on the magnetic field.

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JF - Europhysics Letters

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