Year: 2025
Type: dissertation
Abstract: Layered materials possess uniqueband structures and physical properties thatdistinguish them from three-dimensionalmaterials, attracting widespread researchinterest over the past decades. These distinctivefeatures arise from the strong intralayer atomicbonding and relatively weak interlayerinteractions. Therefore, tuning the atom types,intralayer structures, the interlayer interactions,or even stacking different types of materialscan fundamentally change the macroscopicphysical properties of the system.This thesis focuses on the electronic structureproperties of two representative classes oflayered materials: transition metaldichalcogenides (TMDs) and two dimensionalperovskites. Using angle-resolvedphotoemission spectroscopy (ARPES) and itstime-resolved extension (tr-ARPES), incombination with electron diffraction, Ramanspectroscopy, and transient reflectivitymeasurements, we systematically investigatecomplex electronic many body effects, chiralsuperlattice switching, and electron phononcoupling phenomena in these materials
Source: theses.fr (ABES)
Author: Qi, Weiyan
Institution: Laboratoire des Solides Irradiés
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7105979781
Cites:
Cited by:
Related to: