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Magnetospectroscopy of double HgTe/CdHgTe QWs with inverted band structure in high magnetic fields up to 30 T |
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| Authors: | LS Bovkun AV Ikonnikov VYa Aleshkin KV Maremyanin NN Mikhailov SA Dvoretskii SS Krishtopenko F Teppe BA Piot M Potemski M Orlita VI Gavrilenko |
| Institution: | 1. Institute for Physics of Microstructures – Branch of Federal Research Ceenter “Instititute of Applied Physics of Russian Academy of Sciences”, 603950 Nizhny Novgorod, Russia;2. Laboratoire National des Champs Magnétiques Intenses, LNCMI - CNRS - UGA - UPS - INSA - EMFL, 38042 Grenoble, France;3. Faculty of Physics, M.V. Lomonosov Moscow State University, 119991 Moscow, Russia;4. Lobachevsky State University of Nizhny Novgorod, 603950 Nizhny Novgorod, Russia;5. Institute of Semiconductor Physics, Siberian Branch RAS, 630090 Novosibirsk, Russia;6. Laboratoire Charles Coulomb (L2C), UMR CNR S 5221, GIS - TERALAB, Université Montpellier II, F34095 Montpellier, France;7. Institute of Physics, Charles University, 12116 Prague, Czech Republic |
| Abstract: | 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. |
| Keywords: | Corresponding author at: Faculty of Physics M V Lomonosov Moscow State University 119991 Moscow Russia HgTe/CdHgTe heterostructures Double quantum wells Far-IR magnetospectroscopy Landau levels |
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