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Magnetospectroscopy of double HgTe/CdHgTe QWs with inverted band structure in high magnetic fields up to 30 T
Article de revue   Open Access   Avec comité de lecture

Magnetospectroscopy of double HgTe/CdHgTe QWs with inverted band structure in high magnetic fields up to 30 T

Leonid S Bovkun, Anton V. Ikonnikov, Vladimir y Aleshkin, Kirill V Maremyanin, Nikolay N Mikhailov, Sergey Dvoretsky, Sergey Krishtopenko, Frédéric Teppe, Benjamin Piot, Marek Potemski, …
Opto-Electronics Review, Vol.27(2), pp.213-218
06/2019
DOI: https://doi.org/10.1016/j.opelre.2019.06.001

Résumé

HgTe/CdHgTe heterostructures Double quantum wells Far-IR magnetospectroscopy Landau levels
Magnetoabsorption in far and mid IR ranges in double HgTe/CdHgTe quantum wells with inverted band structure has been studied in high magnetic fields up to 30 T. Numerous intraband and interband transitions have been revealed in the spectra and interpreted within axial 8 × 8 k·p model. Splitting of dominant magnetoabsorption lines resulting from optical transitions from hole-like zero-mode Landau level has been discovered and discussed in terms of a built-in electric field and collective phenomena.

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