15 citations · 49 across the 13 of their papers we have counts for
14 papers
Coherent and Incoherent Time-Resolved Diffuse Scattering Intensity from First Principles
Matteo Furci, Giovanni Marini, Stefano Mocatti +1
Time-resolved diffuse scattering from X-ray free-electron lasers and ultrafast electron diffraction gives access to the nonequilibrium lattice dynamics of photoexcited solids in re…
Light-Induced Transient Polarization Reversal in Rhombohedrally Stacked Bilayer Transition Metal Dichalcogenides via an Electronic Mechanism
Xiangzhou Zhu, Stefano Mocatti, Matteo Calandra
Light-induced sliding ferroelectricity in two-dimensional van der Waals materials enables polarization control via relative layer motion. However, polarization switching occurs on…
Disorder-Driven Enhancement of Coulomb Repulsion Governs The Superconducting Dome in Ionic-Liquid-Gated Quasi-2D Materials
Giovanni Marini, Pierluigi Cudazzo, Matteo Calandra
The superconducting dome in the Tc versus doping phase diagram, found in cuprates, nickelates, twisted bilayer graphene, and transition metal dichalcogenides, is often considered a…
Photoinduced phase heterogeneity and charge localization in SnSe
Benjamin J. Dringoli, Stefano Mocatti, Giovanni Marini +4
Time-resolved multi-terahertz (THz) spectroscopy is used to observe pump fluence-dependent dynamics in the optical conductivity of photoexcited tin selenide (SnSe) over an ultrabro…
Nonequilibrium Photocarrier and Phonon Dynamics from First Principles: a Unified Treatment of Carrier-Carrier, Carrier-Phonon, and Phonon-Phonon Scattering
Stefano Mocatti, Giovanni Marini, Giulio Volpato +2
We develop a first-principles many-body framework to describe the dynamics of photocarriers and phonons in semiconductors following ultrafast excitation. Our approach incorporates…
Theory of infrared magneto-optical effects from chiral phonons in solids
Chiara Fiorazzo, Cheol-Hwan Park, Ivo Souza +1
In crystals with broken time-reversal symmetry, zone-center phonons can acquire a finite angular momentum via velocity-dependent forces on the nuclei. Despite having the same order…
Symmetry-protected electronic metastability in an optically driven cuprate ladder
Hari Padma, Filippo Glerean, Sophia F. R. TenHuisen +23
Optically excited quantum materials exhibit nonequilibrium states with remarkable emergent properties, but these phenomena are usually transient, decaying on picosecond timescales…
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…
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…
Electrical tuning of the magnetic properties of 2D magnets: the case of
Guido Menichetti, Matteo Calandra, Marco Polini
Motivated by growing interest in atomically-thin van der Waals magnetic materials, we present an {\it ab initio} theoretical study of the dependence of their magnetic properties on…