41 citations · 233 across the 27 of their papers we have counts for
7 papers · 1 filter
Wannier interpolation of reciprocal-space periodic and non-periodic matrix elements in the optimally smooth subspace
Giulio Volpato, Stefano Mocatti, Giovanni Marini +1
Maximally localized Wannier functions use the gauge freedom of Bloch wavefunctions to define the optimally smooth subspace with matrix elements that depend smoothly on crystal mome…
Anomalous amplitude mode dynamics below the expected charge-density-wave transition in 1-VSe
Charles J. Sayers, Giovanni Marini, Matteo Calandra +6
A charge-density-wave (CDW) is characterized by a dynamical order parameter consisting of a time-dependent amplitude and phase, which manifest as optically-active collective modes…
Ultrafast creation of a light induced semimetallic state in strongly excited 1T-TiSe
Maximilian Huber, Yi Lin, Giovanni Marini +5
Screening, a ubiquitous phenomenon associated with the shielding of electric fields by surrounding charges, has been widely adopted as a means to modify a material's properties. Wh…
Anisotropic sub-band splitting mechanisms in strained HgTe: a first principles study
Eeshan Ketkar, Giovanni Marini, Pietro Maria Forcella +3
Mercury telluride is a canonical material for realizing topological phases, yet a full understanding of its electronic structure remains challenging due to subtle competing effects…
NbSe's charge density wave collapse in the (LaSe)(NbSe) misfit layer compound
Ludovica Zullo, Grégory Setnikar, Amit Pawbake +8
Misfit layer compounds, heterostructures composed by a regular alternating stacking of rocksalt monochalcogenides bilayers and few-layer transition metal dichalchogenides, are an e…
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…
Optical absorption and photoluminescence of single layer boron nitride from a first principles cumulant approach
Giovanni Marini, Matteo Calandra, Pierluigi Cudazzo
The photoluminescence spectrum of a single-layer boron nitride remains elusive, marked by enigmatic satellites that hint at a significant but unidentified exciton-phonon coupling.H…