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Suppressed magnetic circular dichroism and valley-selective magneto-absorption due to the effective mass anisotropy in bismuth
Pieter J. de Visser, Julien Levallois, Michaël K. Tran +6
We have measured the far-infrared reflectivity and Kerr angle spectra on a high-quality crystal of pure semimetallic bismuth as a function of magnetic field, from which we extract…
Magneto-optical signature of massless Kane electrons in Cd3As2
A. Akrap, M. Hakl, S. Tchoumakov +21
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…
Surface state charge dynamics of a high-mobility three dimensional topological insulator
Jason N. Hancock, J. L. M. van Mechelen, Alexey B. Kuzmenko +6
We present a magneto-optical study of the three-dimensional topological insulator, strained HgTe using a technique which capitalizes on advantages of time-domain spectroscopy to am…
Giant Faraday rotation in single- and multilayer graphene
Iris Crassee, Julien Levallois, Andrew L. Walter +6
Optical Faraday rotation is one of the most direct and practically important manifestations of magnetically broken time-reversal symmetry. The rotation angle is proportional to the…