Publications related to Quasiparticle scattering processes in a model Fermi liquid: 1T-TiTe2

Many-body screening effects in liquid water

Alfredo Pasquarello, Igor Reshetnyak, Arnaud Guillaume Lorin

The screening arising from many-body excitations is a crucial quantity for describing absorption and inelastic X-ray scattering (IXS) of materials. Similarly, the electron screening plays a critical role in state-of-the-art approaches for determining the f ...

NATURE PORTFOLIO2023

A comprehensive analysis of electron emission from a-Si:H/Al2O3 at low energies

Christophe Ballif, Jonathan Emanuel Thomet, Janina Christine Isabelle Löffler, Samira Alexandra Frey, Mohamed Belhaj

Recently developed microchannel plates (MCPs) based on amorphous silicon offer potential advantages with respect to glass based ones. In this context, secondary electron emission (SEE) at very low energies below 100 eV has been studied for relevant materia ...

IOP Publishing Ltd2023

Phonons, electron-phonon coupling and charge transport in low-dimensional materials

Norma Rivano

Over the past few decades, nanostructures have garnered significant attention due to their potential for embodying new physical paradigms and delivering cutting-edge technological applications. Dimensionality strongly affects the vibrational, electron-phon ...

EPFL2023

Cavity Quantum Electrodynamics with strongly correlated fermions

Kevin Etienne Robert Roux

This thesis presents the first cavity quantum electrodynamics experiments performed with a degenerate gas of

^6

Li with strong atom-atom interactions. The first part of this manuscript describes the design and the building of the apparatus that has been e ...

EPFL2022

Real space and reciprocal space investigations of the spin dynamics in skyrmion-hosting materials

Le Yu

Magnetic skyrmions are whirl-like spin configurations with particle-like properties protected by non-trivial topology. Due to their unique spin structures and dynamical properties, they have attracted tremendous interests over the past decade, from fundame ...

EPFL2022

Thermal Evolution of Dirac Magnons in the Honeycomb Ferromagnet CrBr3

Bruce Normand, Christian Rüegg

CrBr3 is an excellent realization of the two-dimensional honeycomb ferromagnet, which offers a bosonic equivalent of graphene with Dirac magnons and topological character. We perform inelastic neutron scattering measurements using state-of-the-art instrume ...

2022

Correlating chemical and electronic states from quantitative photoemission electron microscopy of transition-metal dichalcogenide heterostructures

Andras Kis, Dumitru Dumcenco, Olivier Renault, Dmitrii Unuchek, Hokwon Kim, Nicolas Chevalier

Vertical heterostructures of MoS2 and WSe2 layers are studied by spectroscopic photoemission electron microscopy as an effective technique for correlating chemical and electronic states at the micrometer scale. Element-specific, surface-sensitive images re ...

2021

Evidence of a coupled electron-phonon liquid in NbGe2

Mathieu François Padlewski, Philip Johannes Walter Moll, Matthias Carsten Putzke, Hao Yang

Whereas electron-phonon scattering relaxes the electron's momentum in metals, a perpetual exchange of momentum between phonons and electrons may conserve total momentum and lead to a coupled electron-phonon liquid. Such a phase of matter could be a platfor ...

NATURE PORTFOLIO2021

Evidence for a spin acoustic surface plasmon from inelastic atom scattering

Davide Campi

Closed-shell atoms scattered from a metal surface exchange energy and momentum with surface phonons mostly via the interposed surface valence electrons, i.e., via the creation of virtual electron-hole pairs. The latter can then decay into surface phonons v ...

2021

Unraveling intrinsic correlation effects with angle-resolved photoemission spectroscopy

Vladimir N. Strocov, Marco Vanzini

Interaction effects can change materials properties in intriguing ways, and they have, in general, a huge impact on electronic spectra. In particular, satellites in photoemission spectra are pure many-body effects, and their study is of increasing interest ...

NATL ACAD SCIENCES2020

Quasiparticle scattering processes in a model Fermi liquid: 1T-TiTe2

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Many-body screening effects in liquid water

A comprehensive analysis of electron emission from a-Si:H/Al2O3 at low energies

Phonons, electron-phonon coupling and charge transport in low-dimensional materials

Cavity Quantum Electrodynamics with strongly correlated fermions

Real space and reciprocal space investigations of the spin dynamics in skyrmion-hosting materials

Thermal Evolution of Dirac Magnons in the Honeycomb Ferromagnet CrBr3

Correlating chemical and electronic states from quantitative photoemission electron microscopy of transition-metal dichalcogenide heterostructures

Evidence of a coupled electron-phonon liquid in NbGe2

Evidence for a spin acoustic surface plasmon from inelastic atom scattering

Unraveling intrinsic correlation effects with angle-resolved photoemission spectroscopy

Many-body screening effects in liquid water

Cavity Quantum Electrodynamics with strongly correlated fermions

Real space and reciprocal space investigations of the spin dynamics in skyrmion-hosting materials

Phonons, electron-phonon coupling and charge transport in low-dimensional materials

Unraveling intrinsic correlation effects with angle-resolved photoemission spectroscopy

Evidence for a spin acoustic surface plasmon from inelastic atom scattering

Evidence of a coupled electron-phonon liquid in NbGe2

A comprehensive analysis of electron emission from a-Si:H/Al2O3 at low energies

Thermal Evolution of Dirac Magnons in the Honeycomb Ferromagnet CrBr3

Correlating chemical and electronic states from quantitative photoemission electron microscopy of transition-metal dichalcogenide heterostructures