25 citations · 74 across the 13 of their papers we have counts for
8 papers · 1 filter
Resonantly-enhanced Raman response in graphene-capped bismuthene on SiC
Lukas Gehrig, Cedric Schmitt, Erica Fragomeni +15
Two-dimensional quantum spin Hall insulators based on atomic monolayers offer a promising route toward dissipationless electronics, yet their practical use is often limited by envi…
Tuning Ultra-Narrow Direct Bandgap in alpha-Sn Nanocrystals: A CMOS-Compatible Approach for THz Applications
Tiziano Bertoli, Elena Stellino, Francesco Minati +14
alpha-Sn has recently been attracting significant interest due to its unique electronic properties. However, this allotrope of Sn is stable only below 13 °C and alternative options…
Fine-Tuning of the Excitonic Response in Monolayer WS2 Domes via Coupled Pressure and Strain Variation
Elena Stellino, Beatrice D'Alò, Elena Blundo +2
We present a spectroscopic investigation into the vibrational and optoelectronic properties of WS2 domes in the 0-0.65 GPa range. The pressure evolution of the system morphology, d…
Far-Infrared Signatures for a Two-Steps Pressure-Driven Metallization in Transition Metal Dichalcogenides
Elena Stellino, Beatrice D'Alo', Francesco Capitani +6
We present a high-pressure investigation of the semiconductor-to-metal transition in MoS2 and WS2 carried out by synchrotron-based far-infrared spectroscopy, to reconcile the contr…
Raman Scattering with infrared excitation resonant with MoSe indirect band gap
Simone Sotgiu, Tommaso Venanzi, Francesco Macheda +4
Resonance Raman scattering, which probes electrons, phonons and their interplay in crystals, is extensively used in two-dimensional materials. Here we investigate Raman modes in Mo…
Broadband Infrared Study of Pressure-Tunable Fano Resonance and Metallization Transition in 2H-MoTe2
Elena Stellino, Francesco Capitani, Francesca Ripanti +4
High pressure is a proven effective tool for modulating inter-layer interactions in semiconducting transition metal dichalcogenides, which leads to significant band structure chang…
Infrared study of the pressure-induced isostructural metallic transition in MoWS
Elena Stellino, Francesca Ripanti, Giacomo Nisini +3
Ternary compounds of Transition Metal Dichalcogenides are emerging as an interesting class of crystals with tunable electronic properties, which make them attractive for nano-elect…
Polarization analysis of first- and second-order Raman scattering from MoTe single crystal
S. Caramazza, A. Collina, E. Stellino +2
We report on Raman experiments performed on a single crystal MoTe sample. The system belongs to the wide family of Transition Metal Dichalcogenides which includes several of th…