164 citations · 733 across the 12 of their papers we have counts for
6 papers · 1 filter
First-order rhombohedral to cubic phase transition in photoexcited GeTe
Matteo Furci, Giovanni Marini, Matteo Calandra
Photoexcited GeTe undergoes a non-thermal phase transition from a rhombohedral to a rocksalt crystalline phase. The microscopic mechanism and the nature of the transition are uncle…
Light-Induced Nonthermal Phase Transition to the Topological Crystalline Insulator State in SnSe
Stefano Mocatti, Giovanni Marini, Matteo Calandra
Femtosecond pulses have been used to reveal hidden broken symmetry states and induce transitions to metastable states. However, these states are mostly transient and disappear afte…
Magnetic gap opening in rhombohedral-stacked multilayer graphene from first principles
Betül Pamuk, Jacopo Baima, Francesco Mauri +1
We investigate the occurrence of magnetic and charge density wave instabilities in rhombohedral-stacked multilayer (three to eight layers) graphene by first principles calculations…
First-principles calculations of phonon frequencies, lifetimes and spectral functions from weak to strong anharmonicity: the example of palladium hydrides
Lorenzo Paulatto, Ion Errea, Matteo Calandra +1
The variational stochastic self-consistent harmonic approximation is combined with the calculation of third-order anharmonic coefficients within density-functional perturbation the…
Phonon-limited resistivity of graphene by first-principle calculations: electron-phonon interactions, strain-induced gauge field and Boltzmann equation
Thibault Sohier, Matteo Calandra, Cheol-Hwan Park +3
Electron-phonon coupling in graphene is extensively modeled and simulated from first principles. We find that using an accurate model for the polarizations of the acoustic phonon m…
Electron localization and possible phase separation in the absence of a charge density wave in single-phase 1T-VS
A. Gauzzi, A. Sellam, G. Rousse +12
We report on a systematic study of the structural, magnetic and transport properties of high-purity 1T-VS powder samples prepared under high pressure. The results differ notabl…