@article{231fb835a836458cad9da30666c0b827,
title = "Magneto-Optical Signature of Massless Kane Electrons in Cd3As2",
abstract = "We report on optical reflectivity experiments performed on Cd3As2 over a broad range of photon energies and magnetic fields. The observed response clearly indicates the presence of 3D massless charge carriers. The specific cyclotron resonance absorption in the quantum limit implies that we are probing massless Kane electrons rather than symmetry-protected 3D Dirac particles. The latter may appear at a smaller energy scale and are not directly observed in our infrared experiments.",
author = "A. Akrap and M. Hakl and S. Tchoumakov and I. Crassee and J. Kuba and Goerbig, {M. O.} and Homes, {C. C.} and O. Caha and J. Nov{\'a}k and F. Teppe and W. Desrat and S. Koohpayeh and L. Wu and Armitage, {N. P.} and A. Nateprov and E. Arushanov and Gibson, {Q. D.} and Cava, {R. J.} and {Van Der Marel}, D. and Piot, {B. A.} and C. Faugeras and G. Martinez and M. Potemski and M. Orlita",
note = "Funding Information: This work was supported by ERC MOMB (No. 320590), TWINFUSYON (No. 692034), Lia TeraMIR, TERASENS and by MEYS CEITEC 2020 (No. LQ1601) projects. Support was also received from the U.S. Department of Energy, Office of Basic Energy Sciences, MSE Division under Contract No. DE-SC0012704 (C.C.H.) and DE-FG02-08ER46544 (S.K., L.W. and N.P.A.). A.A. acknowledges funding from the Ambizione grant of the Swiss NSF. Work at Princeton University was supported by the ARO MURI on topological insulators (W911NF-12-0461). The authors acknowledge discussions with D.M. Basko, N. Miller, M. Civelli, and W.-L. Lee. Publisher Copyright: {\textcopyright} 2016 American Physical Society.",
year = "2016",
month = sep,
day = "21",
doi = "10.1103/PhysRevLett.117.136401",
language = "English (US)",
volume = "117",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "13",
}