38 citations · 152 across the 20 of their papers we have counts for
10 papers · 1 filter
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…
Low-energy excitations in multiple modulation-doped CdTe/(CdMg)Te quantum wells
D. Yavorskiy, F. Le Mardelé, I. Mohelsky +6
Low energy excitations of a two-dimensional electron gas (2DEG) in modulation-doped multiple (ten) quantum wells (QWs) was studied using far-infrared magneto-transmission technique…
Probing Berry curvature in magnetic topological insulators through resonant infrared magnetic circular dichroism
Seul-Ki Bac, Florian le Mardelé, Jiashu Wang +16
Probing the quantum geometry and topology in condensed matter systems has relied heavily on static electronic transport experiments in magnetic fields. Yet, contact-free optical me…
Observation of spin-electric transitions in a molecular exchange qubit
Florian le Mardelé, Ivan Mohelský, Jan Wyzula +4
Electric fields represent an ideal means for controlling spins at the nanoscale and, more specifically, for manipulating protected degrees of freedom in multispin systems. Here we…
Exchange gap in GdPtBi probed by magneto-optics
S. Polatkan, E. Uykur, I. Mohelsky +6
We measured the magneto-reflectivity spectra (4 - 90 meV, 0 - 16 T) of the triple-point semimetal GdPtBi and found them to demonstrate two unusual broad features emerging in field.…
Magnon gap excitations and spin-entangled optical transition in van der Waals antiferromagnet NiPS3
Dipankar Jana, P. Kapuscinski, I. Mohelsky +5
Optical magneto-spectroscopy methods (Raman scattering, far-infrared transmission, and photoluminescence) have been applied to investigate the properties of the NiPS3 semiconductin…
Magneto-optical sensing of the pressure driven magnetic ground states in bulk CrSBr
A. Pawbake, T. Pelini, I. Mohelsky +13
Competition between exchange interactions and magnetocrystalline anisotropy may bring new magnetic states that are of great current interest. An applied hydrostatic pressure can fu…
Plasmon-plasmon interaction and the role of buffer in epitaxial graphene micro-flakes
Mykhailo Shestopalov, Václav Dědič, Martin Rejhon +7
We investigate the origin of the translational symmetry breaking in epitaxially grown single-layer graphene. Despite the surface morphology of homogeneous graphene films influenced…
Temperature dependence of the energy band gap in ZrTe: implications for the topological phase
I. Mohelsky, J. Wyzula, B. A. Piot +4
Using Landau level spectroscopy, we determine the temperature dependence of the energy band gap in zirconium pentatelluride (ZrTe). We find that the band gap reaches $E_g=(5 \p…
Lorentz-boost-driven magneto-optics in a Dirac nodal-line semimetal
J. Wyzula, X. Lu, D. Santos-Cottin +13
Optical response of crystalline solids is to a large extent driven by excitations that promote electrons among individual bands. This allows one to apply optical and magneto-optica…