176 citations · 260 across the 8 of their papers we have counts for
8 papers
Ab-initio Van der Waals electrodynamics: polaritons and electron scattering from plasmons and phonons in BN-capped graphene
Francesco Macheda, Francesco Mauri, Thibault Sohier
Plasmons and polar phonons are elementary electrodynamic excitations of matter. In 2d and at long wavelengths, they couple to light and act as the system polaritons. They also dict…
Theory of infrared double-resonance Raman spectrum in graphene: the role of the zone-boundary electron-phonon enhancement
Lorenzo Graziotto, Francesco Macheda, Thibault Sohier +2
We theoretically investigate the double-resonance Raman spectrum of monolayer graphene down to infrared laser excitation energies. By using first-principles density functional theo…
Infrared resonance Raman of bilayer graphene: signatures of massive fermions and band structure on the 2D peak
Lorenzo Graziotto, Francesco Macheda, Tommaso Venanzi +14
Few-layer graphene possesses low-energy carriers which behave as massive fermions, exhibiting intriguing properties in both transport and light scattering experiments. Lowering the…
Born effective charges and vibrational spectra in super and bad conducting metals
Guglielmo Marchese, Francesco Macheda, Luca Binci +3
Interactions mediated by electron-phonon coupling are responsible for important cooperative phenomena in metals such as superconductivity and charge-density waves. The same interac…
Anharmonic melting of the charge density wave in single-layer TiSe2
Jianqiang Sky Zhou, Lorenzo Monacelli, Raffaello Bianco +3
Low dimensional systems with a vanishing band-gap and a large electron-hole interaction have been proposed to be unstable towards exciton formation. As the exciton binding energy i…
Extraordinary high room-temperature carrier mobility in graphene-WSe heterostructures
L. Banszerus, T. Ouaj, T. Sohier +16
High charge carrier mobilities play a fundamental role for high-frequency electronics, integrated optoelectronics as well as for sensor and spintronic applications, where device pe…
Electric field exfoliation and high-T superconductivity in field-effect hole-doped hydrogenated diamond (111)
Davide Romanin, Thibault Sohier, Dario Daghero +3
We investigate the possible occurrence of field-effect induced superconductivity in the hydrogenated diamond surface by first-principles calculations. By computing the band…
Wannier interpolation of the electron-phonon matrix elements in polar semiconductors: Polar-optical coupling in GaAs
J. Sjakste, N. Vast, M. Calandra +1
We generalize the Wannier interpolation of the electron-phonon matrix elements to the case of polar-optical coupling in polar semiconductors. We verify our methodological developme…