Publications by Ludmila Maria Diniz Leroy

A setup for hard x-ray time-resolved resonant inelastic x-ray scattering at SwissFEL

Majed Chergui, Giulia Fulvia Mancini, Michele Puppin, Hui-Yuan Chen, Ludmila Maria Diniz Leroy, Rolf Baldwin Versteeg

We present a new setup for resonant inelastic hard x-ray scattering at the Bernina beamline of SwissFEL with energy, momentum, and temporal resolution. The compact R = 0.5 m Johann-type spectrometer can be equipped with up to three crystal analyzers and al ...

Aip Publishing2024

Deconvolution of the X-ray absorption spectrum of trans-1,3-butadiene with resonant Auger spectroscopy

Majed Chergui, Luca Longetti, Thomas Roland Barillot, Camila Bacellar Cases Da Silveira, Ludmila Maria Diniz Leroy

High-resolution carbon K-edge X-ray photoelectron, X-ray absorption, non-resonant and resonant Auger spectra are presented of gas phase trans-1,3-butadiene alongside a detailed theoretical analysis utilising nuclear ensemble approaches and vibronic models ...

Royal Soc Chemistry2024

Jahn-Teller effects in initial and final states: high-resolution X-ray absorption, photoelectron and Auger spectroscopy of allene

Majed Chergui, Luca Longetti, Thomas Roland Barillot, Camila Bacellar Cases Da Silveira, Rebecca Ann Ingle, Daniel Hollas, Ludmila Maria Diniz Leroy

Carbon K-edge resonant Auger spectra of gas-phase allene following excitation of the pre-edge 1s -> pi* transitions are presented and analysed with the support of EOM-CCSD/cc-pVTZ calculations. X-Ray absorption (XAS), X-ray photoelectron (XPS), valence ban ...

ROYAL SOC CHEMISTRY2023

Atomic-Level Description of Thermal Fluctuations in Inorganic LeadHalide Perovskites

Alfredo Pasquarello, Majed Chergui, Nicola Colonna, Oliviero Cannelli, Michele Puppin, Ludmila Maria Diniz Leroy

A comprehensive microscopic description of thermally induceddistortions in lead halide perovskites is crucial for their realistic applications, yetstill unclear. Here, we quantify the effects of thermal activation in CsPbBr3nanocrystals across length scale ...

AMER CHEMICAL SOC2022

Quantifying Photoinduced Polaronic Distortions in Inorganic Lead Halide Perovskite Nanocrystals

Majed Chergui, Giulia Fulvia Mancini, Andre Al Haddad, Thomas Charles Henry Rossi, Nicola Colonna, Dominik Kinschel, James Michael Budarz, Oliviero Cannelli, Michele Puppin, Ludmila Maria Diniz Leroy

The development of next-generation perovskite-based optoelectronic devices relies critically on the understanding of the interaction between charge carriers and the polar lattice in out-of-equilibrium conditions. While it has become increasingly evident fo ...

2021

Mapping the thermo-induced valence tautomerism in Cobalt dioxolane single crystals

Majed Chergui, Frederico Alves Lima, Ludmila Maria Diniz Leroy

INT UNION CRYSTALLOGRAPHY2021