Interband magneto-spectroscopy in InSb square and parabolic quantum wells

We measure the magneto-optical absorption due to intersubband optical transitions between conduction and valence subband Landau levels in InSb square and parabolic quantum wells. InSb has the narrowest band gap (0.24 eV at low temperature) of the III–V semiconductors leading to a small effective mas...

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Bibliographic Details
Published in:Journal of applied physics 2015-06, Vol.117 (21)
Main Authors: Kasturiarachchi, T., Saha, D., Pan, X., Sanders, G. D., Edirisooriya, M., Mishima, T. D., Doezema, R. E., Stanton, C. J., Santos, M. B.
Format: Article
Language:English
Subjects:
Applied physics
Electronic devices
Indium antimonide
Intermetallic compounds
Quantum wells
Thickness
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Summary:We measure the magneto-optical absorption due to intersubband optical transitions between conduction and valence subband Landau levels in InSb square and parabolic quantum wells. InSb has the narrowest band gap (0.24 eV at low temperature) of the III–V semiconductors leading to a small effective mass (0.014 m0) and a large g–factor (−51). As a result, the Landau level spacing is large at relatively small magnetic fields (
ISSN:0021-8979
1089-7550
DOI:10.1063/1.4921293