120 citations · 253 across the 14 of their papers we have counts for
14 papers
Spin-flip optical excitations in van der Waals antiferromagnet CrPS
Dipankar Jana, Aljoscha Soll, Zdenek Sofer +4
We investigate the near-infrared optical response of the semiconducting van der Waals antiferromagnet CrPS and identify previously unreported spin-entangled optical resonances.…
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…
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…
Transverse and longitudinal magnons in strongly anisotropic antiferromagnet FePSe3
F. Le Mardele, A. El Mendili, M. E. Zhitomirsky +7
FePSe3 is a collinear honeycomb antiferromagnet with an easy-axis anisotropy and large spins S=2. It belongs to a family of magnetic van der Waals materials, which recently attract…
Electronic band structure of Sb2Te3
I. Mohelsky, J. Wyzula, F. Le Mardele +11
Here we report on Landau level spectroscopy of an epitaxially grown thin film of the topological insulator Sb2Te3, complemented by ellipsometry and magneto-transport measurements.…
Magnon gap excitations in van der Waals antiferromagnet MnPSe
Dipankar Jana, D. Vaclavkova, I. Mohelsky +9
Magneto-spectroscopy methods have been employed to study the zero-wavevector magnon excitations in MnPSe. Experiments carried out as a function of temperature and the applied m…
Terahertz cyclotron emission from two-dimensional Dirac fermions
S. Gebert, C. Consejo, S. S. Krishtopenko +13
Since the emergence of graphene, we have seen several proposals for the realization of Landau lasers tunable over the terahertz frequency range. The hope was that the non-equidista…
High-angular momentum excitations in collinear antiferromagnet FePS
Jan Wyzula, Ivan Mohelsky, Diana Vaclavkova +6
We report on magneto-optical studies of the quasi-two-dimensional van der Waals antiferromagnet FePS. Our measurements reveal an excitation that closely resembles the antiferro…
Spatially resolved optical spectroscopy in extreme environment of low temperature, high magnetic fields and high pressure
I. Breslavetz, A. Delhomme, T. Pelini +6
We present an experimental set-up developed to perform optical spectroscopy experiments (Raman scattering and photoluminescence measurements) with a micrometer spatial resolution,…
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…
Optical conductivity signatures of open Dirac nodal lines
D. Santos-Cottin, M. Casula, L. de' Medici +7
We investigate the optical conductivity and far-infrared magneto-optical response of BaNiS, a simple square-lattice semimetal characterized by Dirac nodal lines that disperse e…
Landau level spectroscopy of PbSnSe topological crystalline insulator
Kristupas Kazimieras Tikuišis, Jan Wyzula, Lukáš Ohnoutek +8
We report on an infrared magneto-spectroscopy study of PbSnSe, a topological crystalline insulator. We have examined a set of samples, all in the inverted regime of ele…
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…
Strong interband Faraday rotation in 3D topological insulator Bi2Se3
L. Ohnoutek, M. Hakl, M. Veis +11
The Faraday effect is a representative magneto-optical phenomenon, resulting from the transfer of angular momentum between interacting light and matter in which time-reversal symme…