%0 Journal Article
%T Many-particle effects in optical transitions from zero-mode Landau levels in HgTe quantum wells
%+ Laboratoire Charles Coulomb (L2C)
%+ Institut d’Electronique et des Systèmes (IES)
%+ Térahertz, hyperfréquence et optique (TéHO)
%A Krishtopenko, Sergey S.
%A Kadykov, Aleksandr
%A Gebert, S.
%A Ruffenach, Sandra
%A Consejo, Christophe
%A Torres, Jeremie
%A Avogadri, Colin
%A Jouault, Benoit
%A Knap, Wojciech
%A Mikhailov, N. N.
%A Dvoretskii, S. A.
%A Teppe, Frederic
%< avec comité de lecture
%Z L2C:20-092
%@ 2469-9950
%J Physical Review B
%I American Physical Society
%V 102
%N 4
%P 041404
%8 2020-07-31
%D 2020
%Z 1912.04818
%R 10.1103/PhysRevB.102.041404
%Z Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]Journal articles
%X We report on the far-infrared magnetospectroscopy of HgTe quantum wells with inverted band ordering at different electron concentrations. We particularly focus on optical transitions from zero-mode Landau levels, which split from the edges of electron-like and hole-like bands. We observe a pronounced dependence of the transition energies on the electron concentration varied by persistent photoconductivity effect. This is striking evidence that in addition to the already well-documented crystalline and interface asymmetries, electron-electron interactions also have a significant impact on the usual behavior of the optical transitions from zero mode Landau levels.
%G English
%2 https://hal.science/hal-02919862/document
%2 https://hal.science/hal-02919862/file/1912.04818.pdf
%L hal-02919862
%U https://hal.science/hal-02919862
%~ CNRS
%~ IES
%~ L2C
%~ MIPS
%~ UNIV-MONTPELLIER
%~ ANR
%~ UM-2015-2021