37 citations · 219 across the 8 of their papers we have counts for
8 papers
Tunable surface plasmons in Weyl semimetals TaAs and NbAs
Gennaro Chiarello, Johannes Hofmann, Zhilin Li +5
By means of high-resolution electron energy loss spectroscopy, we investigate the low-energy excitation spectrum of transition-metal monopnictides hosting Weyl fermions. We observe…
Broadband excitation spectrum of bulk crystals and thin layers of PtTe
Barun Ghosh, Francesca Alessandro, Marilena Zappia +8
We explore the broadband excitation spectrum of bulk PtTe using electron energy loss spectroscopy and density functional theory. In addition to infrared modes related to intrab…
The role of surface chemical reactivity in the stability of electronic nanodevices based on two-dimensional materials "beyond graphene" and topological insulators
A. Politano, M. S. Vitiello, L. Viti +2
Here, we examine the influence of surface chemical reactivity toward ambient gases on the performance of nanodevices based on two-dimensional materials "beyond graphene" and novel…
Unusually strong lateral interaction in the CO overlayer in phosphorene-based systems
Antonio Politano, Miriam Serena Vitiello, Leonardo Viti +5
By means of vibrational spectroscopy and density functional theory (DFT), we investigate CO adsorption on phosphorene-based systems. We find stable CO adsorption at room temperatur…
Effect of moiré superlattice reconstruction in the electronic excitation spectrum of graphene-metal heterostructures
Antonio Politano, Guus J. Slotman, Rafael Roldán +4
We have studied the electronic excitation spectrum in periodically rippled graphene on Ru(0001) and flat, commensurate graphene on Ni(111) by means of high-resolution electron ener…
Emergence of a ZO Kohn anomaly in quasi-freestanding epitaxial graphene
Antonio Politano, Fernando de Juan, Gennaro Chiarello +1
In neutral graphene, two prominent cusps known as Kohn anomalies are found in the phonon dispersion of the highest optical phonon at (LO branch) and (TO branch), reflec…
Symmetries and selection rules in the measurement of the phonon spectrum of graphene and related materials
Fernando de Juan, Antonio Politano, Gennaro Chiarello +1
When the phonon spectrum of a material is measured in a scattering experiment, selection rules preclude the observation of phonons that are odd under reflection by the scattering p…
Spectroscopic characterization of graphene films grown on Pt (111) surface by chemical vapor deposition of ethylene
E. Cazzanelli, T. Caruso, M. Castriota +5
This work reports the peculiar properties of a graphene film prepared by the chemical vapor deposition (CVD) of ethylene in high vacuum on a well oriented and carefully cleaned Pt(…