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Séminaire « Propriétés optiques et électroniques des nanostructures » de l’INSP

Magneto-optics of 3D massless electrons - Milan Orlita - mardi 28 mars 2017 à 11 h

INSP - UPMC - 4 place Jussieu - 75005 Paris - Barre 22-32, 2e étage, salle 201

Milan Orlita, Laboratoire National des Champs Magnétiques Intenses, CNRS-Université Grenoble-Alpes


The class of solid-state systems hosting massless electrons has been recently expanded to include materials with truly 3D conical bands. In my talk, I will review our recent high-field infrared magneto-spectroscopy studies of two such materials : HgCdTe [1,2], tuned to the point of the topological semimetal-semiconductor transition and hosting 3D massless Kane electrons, and Cd3As2 [3], recently reported to be the premier 3D topological Dirac semimetal, which is stable at ambient conditions.

References :

[1] M. Orlita et al., Nature Phys. 10, 233 (2014)
[2] F. Teppe et al., Nature Comm. 7, 12576 (2016)
[3] A. Akrap et al., Phys. Rev. Lett. 117, 136401 (2016)