38 citations · 152 across the 20 of their papers we have counts for
20 papers
Room-temperature antiferromagnetic resonance in NaMnAs
Jan Dzian, Stáňa Tázlarů, Ivan Mohelský +16
We report on antiferromagnetic resonance experiments in bulk tetragonal NaMnAs -- a room-temperature antiferromagnetic semiconductor. Our results corroborate previous ab initio stu…
Magneto-optical signatures of plateau states in the kagome spin-ice HoAgGe
F. Schilberth, L. DeFreitas, K. Zhao +11
Coupling of itinerant electrons to non-collinear spin structures in frustrated rare-earth magnets leads to unusual transport properties. While these complex magnetic orders are exp…
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…
Magneto-optical response of magnetic semiconductors EuCd2X2 (X= P, As, Sb)
S. Nasrallah, D. Santos-Cottin, F. Le Mardele +16
In this study, we identify EuCd2X2 (for X = P, As, Sb) as a series of magnetic semiconductors. We examine how the band gap of the series responds to X changing from phosphorus (P),…
Tuning THz magnons in a mixed van-der-Waals antiferromagnet
F. Le Mardele, I. Mohelsky, D. Jana +9
Alloying stands out as a pivotal technological method employed across various compounds, be they metallic, magnetic, or semiconducting, serving to fine-tune their properties to mee…
Generation of Weyl points and a nodal line by magnetization reorientation in CoSnS
F. Schilberth, M. -C. Jiang, F. Le Mardelé +11
Topological magnets exhibit fascinating properties like topologically protected surface states or anomalous transport phenomena. While these properties can be significantly altered…
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…
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…
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 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…
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…
Evidence of 3D Dirac conical bands in TlBiSSe by optical and magneto-optical spectroscopy
F. Le Mardelé, J. Wyzula, I. Mohelsky +15
TlBiSSe is a rare realization of a 3D semimetal with a conically dispersing band that has an optical response which is well isolated from other contributions in a broad range of ph…
EuCdAs: a magnetic semiconductor
D. Santos-Cottin, I. Mohelský, J. Wyzula +18
EuCdAs is now widely accepted as a topological semimetal in which a Weyl phase is induced by an external magnetic field. We challenge this view through firm experimental ev…
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…
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…