Auteur(s): Zholudev M., Kadykov A., Fadeev Mikhail, Marcinkiewicz M., Ruffenach S., Consejo C., Knap W., Torres Jérémie, Morozov Sergey, Gavrilenko Vladimir, Mikhailov Nikolay, Dvoretskii Sergey, Teppe F.
(Article) Publié:
Condensed Matter, vol. 4 p.27 (2019)
Texte intégral en Openaccess : 
Ref HAL: hal-02072773_v1
DOI: 10.3390/condmat4010027
WoS: 000464288500001
Exporter : BibTex | endNote
1 Citation
Résumé:
We report on the comparison between temperature-dependent magneto-absorption and magnetotransport spectroscopy of HgTe/CdHgTe quantum wells in terms of the detection of the phase transition between the topological insulator and band insulator states. Our results demonstrate that temperature-dependent magnetospectroscopy is a powerful tool to discriminate trivial and topological insulator phases, yet the magnetotransport method is shown to have advantages for the clear manifestation of the phase transition with accurate quantitative values of the transition parameter (i.e., critical magnetic field B c).