4 papers
Dynamics of surface electrons in a topological insulator: cyclotron resonance at room temperature
I. Mohelsky, F. Le Mardele, J. Dzian +13
The ability to manipulate the surface states of topological insulators using electric or magnetic fields under ambient conditions is a key step toward their integration into future…
Broad-band ellipsometry study of the anisotropic dielectric response of YAlO3
Laurent Bugnon, Christian Bernhard, Premysl Marsik
We present a broad band (THz to UV) ellipsometry study of the anisotropic dielectric response of the orthorhombic perovskite YAlO3. The ellipsometric measurements have been perform…
Large magnon dichroism and other optical properties of hexagonal ferrite h-Lu0.6Sc0.4FeO3 with altermagnetic A2 spin ordering
V. A. Martinez, A. A. Sirenko, L. Bugnon +8
Multiferroic hexagonal h-Lu0.6Sc0.4FeO3 single crystals with non-collinear spins were studied using the THz and Raman scattering spectroscopies and ellipsometry. Antiferromagnetic…
Spectroscopic signatures of magnetization-induced band renormalization and strong spin-charge-lattice coupling in EuZnAs
Zhiyu Liao, Boxuan Li, Shaohui Yi +9
We report an infrared spectroscopy study of the antiferromagnetic (AFM) insulator EuZnAs over a broad frequency range, spanning temperatures both above and below the AFM tr…