41 citations · 233 across the 27 of their papers we have counts for
29 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…
Multigap superconductivity in Ising superconductors: The case of (LaSe)1.14(NbSe2)m misfit layer compounds
Alexandra Palacio-Morales, Tomas Samuely, Ludovica Zullo +14
Strong spin-orbit coupling and broken inversion symmetry in transition metal dichalcogenides give rise to Ising superconductivity, a spin-protected pairing state first identified i…
Doping tunable charge density waves in misfit layer compounds
Hugo Le Du, Ludovica Zullo, Justine Cordiez +14
The ability to tune charge density waves (CDWs) through external control knobs, such as doping, pressure or strain is crucial for exploring the phase diagram of two dimensional (2D…
Tuning the Charge Transfer of Transition Metal Dichalcogenides via Misfit Layer Compounds
Hugo Le Du, Ludovica Zullo, Justine Cordiez +16
Misfit layer compounds (MLCs) are a versatile platform for exploring the electronic phase diagram of two dimensional (2D) materials beyond the limits of conventional gating techniq…
Ab Initio Spinor Kadanoff-Baym Approach to Nonequilibrium Electron, Phonon and Magnon Dynamics in Itinerant Ferromagnets
Giovanni Marini
This work introduces a theoretical framework based on the Kadanoff-Baym equations in spinor space to study ultrafast magnetization dynamics in itinerant ferromagnetic systems from…
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…
First-order phase transition driven by competing charge-order fluctuations in 1T'-TaTe
S. K. Mahatha, A. Kar, J. Corral-Sertal +20
First-order phase transitions, characterized by a discontinuous change in the order parameter, are intriguing phenomena in condensed matter physics. However, the underlying, materi…
Nonthermal magnetization pathways in photoexcited semiconductors
Giovanni Marini
The stabilization of long-range magnetic order in nominally non-magnetic semi-conductors using femtosecond light pulses is an exciting yet experimentally challenging goal. Theoreti…
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…
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…
Electron-phonon driven charge density wave in CuTe
Marco Campetella, Giovanni Marini, Jianqiang Sky Zhou +1
The compound CuTe (vulcanite) undergoes a quasi one dimensional charge density wave (CDW) at K with a periodicity. The mechanism at its…
Misfit layer compounds as ultra-tunable field effect transistors: from charge transfer control to emergent superconductivity
Ludovica Zullo, Giovanni Marini, Tristan Cren +1
Misfit layer compounds are heterostructures composed of rocksalt units stacked with few layers transition metal dichalcogenides. They host Ising superconductivity, charge density w…
EPIq : an open-source software for the calculation of electron-phonon interaction related properties
Giovanni Marini, Guglielmo Marchese, Gianni Profeta +5
EPIq (Electron-Phonon wannier Interpolation over k and q-points) is an open-source software for the calculation of electron-phonon interaction related properties from first princip…
Topological band inversion in HgTe(001): surface and bulk signatures from photoemission
Raphael C. Vidal, Giovanni Marini, Lukas Lunczer +14
HgTe is a versatile topological material and has enabled the realization of a variety of topological states, including two- and three-dimensional (3D) topological insulators and to…
Competition between phonon mediated superconductivity and carriers localization in field-effect doped molybdenum dichalcogenides
Giovanni Marini, Matteo Calandra
Superconductivity occurs in electrochemically doped molybdenum dichalcogenides samples thicker than four layers. While the critical temperature (Tc) strongly depends on the field e…
Theory of ultrafast magnetization of non-magnetic semiconductors with localized conduction bands
Giovanni Marini, Matteo Calandra
The magnetization of a non-magnetic semiconductor by femtosecond light pulses is crucial to achieve an all-optical control of the spin dynamics in materials and to develop faster m…