A5075640579- Electron and X-Ray Spectroscopy Techniques
- X-ray Spectroscopy and Fluorescence Analysis
- Semiconductor materials and devices
- Ion-surface interactions and analysis
- Advancements in Photolithography Techniques
- Nuclear Physics and Applications
- Surface and Thin Film Phenomena
- Integrated Circuits and Semiconductor Failure Analysis
- Muon and positron interactions and applications
- Atomic and Molecular Physics
- Advanced Electron Microscopy Techniques and Applications
- Metal and Thin Film Mechanics
- Diamond and Carbon-based Materials Research
- Radiation Therapy and Dosimetry
- Electronic and Structural Properties of Oxides
- Plasma Diagnostics and Applications
- Hydrogen embrittlement and corrosion behaviors in metals
- Graphene research and applications
- Advanced Chemical Physics Studies
- Ga2O3 and related materials
- Quantum Information and Cryptography
- Photocathodes and Microchannel Plates
- Force Microscopy Techniques and Applications
- Nuclear Materials and Properties
- Semiconductor materials and interfaces
European Centre for Theoretical Studies in Nuclear Physics and Related Areas
2015-2024
Fondazione Bruno Kessler
2007-2024
Istituto Nazionale di Fisica Nucleare, Trento Institute for Fundamental Physics And Applications
2015-2024
Kessler Foundation
2022
University of Trento
2001-2014
Istituto Nazionale di Fisica Nucleare, Sezione di Padova
2013
The Microsoft Research - University of Trento Centre for Computational and Systems Biology
2012
ETH Zurich
2009
University of Sheffield
2008
Istituto Centrale per la Ricerca Scientifica e Tecnologica Applicata al Mare
1990-2007
We combine sub-20 fs transient absorption spectroscopy with state-of-the-art computations to study the ultrafast photoinduced dynamics of trans-azobenzene (AB). are able resolve lifetime ππ* state, whose decay within ca. 50 is correlated buildup nπ* population and emergence coherences in dynamics, date unobserved. Nonlinear simulations call for CNN in-plane bendings as active modes subps coherent out state. Radiative kinetic energy transfer into these drives system a high-energy planar...
Nonlinear electronic spectroscopies represent one of the most powerful techniques to study complex multichromophoric architectures. For these systems, in fact, linear spectra are too congested be used disentangle many coupled vibroelectronic processes that activated. By using a 2D approach, instead, clear picture can achieved, but only when recorded combined with proper interpretative model. So far, this has been almost always achieved through parametrized exciton Hamiltonians necessarily...
Electron-matter interaction is described by a Monte Carlo procedure in which the mean free path calculated using screened Rutherford formula, while energy loss computed Kanaya and Okayama semiempirical expression. simulation results of backscattering coefficient have been compared with available experimental data. The examined range was 5--30 keV, atomic number 4--92, tilt angle 0\ifmmode^\circ\else\textdegree\fi{}--80\ifmmode^\circ\else\textdegree\fi{}. agreement between simulated data...
Abstract The estimate of the total electron yield is fundamental for our understanding test-mass charging associated with cosmic rays in Laser Interferometer Space Antenna (LISA) Pathfinder mission and forthcoming gravitational wave observatory LISA. To unveil role low energy electrons this process owing to galactic solar energetic particle events, work we study interaction keV sub-keV a gold slab using mixed Monte Carlo (MC) ab-initio framework. We determine spectrum emerging from such hit...
Abstract The resolution capability of the scanning electron microscope has increased immensely in recent years, and is now within sub-nanometre range, at least for inorganic materials. An equivalent advance not yet been achieved imaging morphologies nanostructured organic materials, such as photovoltaic blends. Here we show that energy-selective secondary detection can be used to obtain high-contrast, material-specific images an blend. We also find differentiate mixed phases from pure...
Abstract Elastic Peak Electron Spectroscopy, abbreviated as EPES, involves the analysis of line shape found in elastic peak. The reduction energy electrons within peak is a result being transferred to target atoms, phenomenon referred recoil energy. EPES distinguishes itself among electron spectroscopies by its unique ability identify hydrogen polymers and hydrogenated carbon-based materials. This distinctiveness particularly notable because lighter elements demonstrate more pronounced...
We propose an efficient quantum state tomography method inspired by compressed sensing and threshold that can drastically reduce the number of measurement settings to reconstruct density matrix $N$-qudit system. validate our algorithm with simulations on IBMQ demonstrate accurate reconstruction $N\leq7$ qubit systems, reproducing GHZ, $W$, random states $O(1)$, $O(N^2)$, $O(N)$ settings.
Abstract Elastic peak electron spectroscopy, also known as Compton scattering or Rutherford backscattering, is a powerful technique for analyzing the elastic line shape in reflection energy spectra. The represents electrons that have undergone without inelastic collisions, but whose position and width are affected by recoil. As result, shift of broadening due to atomic motion can be observed, both which provide information about interactions between material. Due its low mass, hydrogen...
Understanding the interaction of charged particles with polymers is crucial for applications in materials science, radiation physics, and electron spectroscopy. This study investigates differences elastic scattering spectra electrons positrons polyethylene, focusing on underlying mechanisms that influence spectral features. The analysis isolates key factors such as recoil energy, Doppler broadening, interplay between inelastic mean free paths. Using Monte Carlo simulations, we analyze...
The differential, total, and transport cross sections for electrons positrons impinging on free atoms solid targets have been calculated in the energy range of 100–5000 eV. As an application, mean number wide angle collisions suffered by particle before slowing down to rest backscattering coefficient are analytically calculated; values coefficients found be better agreement with experiment than earlier calculations.
Abstract Two-dimensional (2D) materials usually have a layer-dependent work function, which require fast and accurate detection for the evaluation of their device performance. A technique with high throughput spatial resolution has not yet been explored. Using scanning electron microscope, we developed implemented quantitative analytical allows effective extraction function graphene. This uses secondary contrast nanometre-resolved layer information. The measurement few-layer graphene flakes...
A mixed quantum mechanical and Monte Carlo method for calculating Auger spectra from nanoclusters is presented. The approach, based on a cluster method, consists of two steps. Ab initio calculations are first performed to obtain accurate energy probability distributions the generated electrons. In second step, using calculated line shape as electron source, used simulate effect inelastic losses original shape. resulting spectrum can be directly compared ``as-acquired'' experimental spectra,...
The surface photoelectron and inner shell electron spectroscopy (SURPRISES) program suite performs ab initio calculations of photoionization non-radiative decay spectra in nanoclusters solid state systems by using a space-energy similarity procedure to reproduce the band-like part spectra. This approach provides an extension Fano resonant multichannel scattering theory dealing with complexity arising from condensed matter at computational cost comparable that molecules. bottleneck is size...
The manufacturing of high-modulus, high-strength fibers is paramount importance for real-world, high-end applications. In this respect, carbon nanotubes represent the ideal candidates realizing such fibers. However, their remarkable mechanical performance difficult to bring up macroscale, due low load transfer within fiber. A strategy increase introduction chemical linkers connecting units, which can be obtained, example, using ion-beam irradiation. work, we investigate, via molecular...