Magneto-Optical Signature of Massless Kane Electrons in Cd_{3} As_{2}

Author(s): A. Akrap, M. Hakl, S. Tchoumakov, I. Crassee, J. Kuba, M. O. Goerbig, C. C. Homes, O. Caha, J. Novák, F. Teppe, W. Desrat, S. Koohpayeh, L. Wu, N. P. Armitage, A. Nateprov, E. Arushanov, Q. D. Gibson, R. J. Cava, D. van der Marel, B. A. Piot, C. Faugeras, G. Martinez, M. Potemski, and M. Orlita

Optical reflectivity experiments on Cd${}_3$As${}_2$ indicate the presence of Kane electrons rather than Dirac fermions in this material. The results contradict those from recent ARPES experiments, but agree with recent STM results.

[Phys. Rev. Lett. 117, 136401] Published Wed Sep 21, 2016