83 citations · 438 across the 17 of their papers we have counts for
19 papers
Magnetic-Field-Induced Darkening of Bright Excitons in a MoWSe Monolayer Alloy
Katarzyna Olkowska-Pucko, Artur O. Slobodeniuk, Mehdi Arfaoui +14
Magnetic fields are widely used to brighten spin-forbidden dark excitons, but the inverse effect on an optically bright exciton has remained largely unexplored. We demonstrate the…
Strong and selective magnon-phonon coupling in van der Waals antiferromagnet CoPS
Dipankar Jana, Diana Vaclavkova, Rajesh Kumar Ulaganathan +6
The Raman scattering response of the biaxial antiferromagnet CoPS has been investigated as a function of both magnetic field and temperature. The peaks observed in the low-freq…
Extremely high excitonic -factors in 2D crystals by alloy-induced admixing of band states
Katarzyna Olkowska-Pucko, Tomasz Woźniak, Elena Blundo +24
Monolayers (MLs) of semiconducting transition metal dichalcogenides (\mbox{S-TMDs}) emit light very efficiently and display rich spin-valley physics, with gyromagnetic (-) facto…
Orientation-Driven Large Magnetic Hysteresis of Er(III) Cyclooctatetraenide-Based Single-Ion Magnets Adsorbed on Ag(100)
Vladyslav Romankov, Moritz Bernhardt, Martin Heinrich +10
The molecular self-assembly and the magnetic properties of two cyclooctatetraenide (COT) - based single-ion magnets (SIM) adsorbed on Ag(100) in the sub-monolayer range are reporte…
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…
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…
Excitons and trions in WSSe monolayers
Katarzyna Olkowska-Pucko, Elena Blundo, Natalia Zawadzka +15
The possibility of almost linear tuning of the band gap and of the electrical and optical properties in monolayers (MLs) of semiconducting transition metal dichalcogenide (S-TMD) a…
High pressure tuning of magnon-polarons in the layered antiferromagnet FePS
Amit Pawbake, Thomas Pelini, Alex Delhomme +9
Magnetic layered materials have emerged recently as promising systems to introduce magnetism in structures based on two-dimensional (2D) materials and to investigate exotic magneti…
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,…
Destructive photon echo formation in six-wave mixing signals of a MoSe monolayer
Thilo Hahn, Diana Vaclavkova, Miroslav Bartos +8
Monolayers of transition metal dichalcogenides display a strong excitonic optical response. Additionally encapsulating the monolayer with hexagonal boron nitride allows to reach th…
Magnon-polarons in van der Waals antiferromagnet FePS3
D. Vaclavkova, M. Palit, J. Wyzula +11
The hybridization of magnons (spin waves) with phonons, if sufficiently strong and comprising long wavelength excitations, may offer a new playground when manipulating the magnetic…
Rydberg series of dark excitons and the conduction band spin-orbit splitting in monolayer WSe
Piotr Kapuscinski, Alex Delhomme, Diana Vaclavkova +7
Strong Coulomb correlations together with multi-valley electronic bands in the presence of spin-orbit interaction and possible new optoelectronic applications are at the heart of s…
Magnetoelastic interaction in the two-dimensional magnetic material MnPS studied by first principles calculations and Raman experiments
Diana Vaclavkova, Alex Delhomme, Clément Faugeras +7
We report experimental and theoretical studies on the magnetoelastic interactions in MnPS. Raman scattering response measured as a function of temperature shows a blue shift of…
Valley polarization of singlet and triplet trions in WS monolayer in magnetic fields
P. Kapuściński, D. Vaclavkova, M. Grzeszczyk +9
The spectral signatures associated with different negatively charged exciton complexes (trions) in a WS monolayer encapsulated in hBN, are analyzed from low temperature and pol…
Flipping exciton angular momentum with chiral phonons in MoSe/WSe heterobilayers
A. Delhomme, D. Vaclavkova, A. Slobodeniuk +11
Identifying quantum numbers to label elementary excitations is essential for the correct description of light-matter interaction in solids. In monolayer semiconducting transition m…
Coherent dynamics and mapping of excitons in single-layer MoSe and WSe at the homogeneous limit
Caroline Boule, Diana Vaclavkova, Miroslav Bartos +6
We perform coherent nonlinear spectroscopy of excitons in single-layers of MoSe and WSe encapsulated between thin films of hexagonal boron nitride. Employing four-wave mixi…
Orbital, spin and valley contributions to Zeeman splitting of excitonic resonances in MoSe, WSe and WS monolayers
M. Koperski, M. R. Molas, A. Arora +6
We present a comprehensive optical study of the excitonic Zeeman effects in transition metal dichalcogenide monolayers, which are discussed comparatively for selected materials: Mo…
Singlet and triplet trions in WS monolayer encapsulated in hexagonal boron nitride
D. Vaclavkova, J. Wyzula, K. Nogajewski +5
Embedding a WS monolayer in flakes of hexagonal boron nitride allowed us to resolve and study the photoluminescence response due to both singlet and triplet states of negativel…