PRIN 2017 BARONE 2017Z8TS5B - TUNING AND UNDERSTANDING QUANTUM PHASES IN 2D MATERIALS - QUANTUM2D (DFM.AD002.094)
Area tematica
Scienze fisiche e tecnologie della materia
Area progettuale
Scienze e tecnologie quantistiche (DFM.AD002)Struttura responsabile del progetto di ricerca
Istituto superconduttori, materiali innovativi e dispositivi (SPIN)
Altre strutture che collaborano al progetto di ricerca
Responsabile di progetto
PAOLO BARONE
Telefono: 0862433014
E-mail: paolo.barone@spin.cnr.it
Abstract
Technological developments for preparing low-dimensional materials as well as for generating two-dimensional electron gas in atomically thin layers allow for unprecedented possibilities to control and tune symmetry-breaking phenomena. Due to their variety and flexibility, layered transition-metal dichalcogenides are an ideal playground where the interplay and competition of superconductivity and charge-density waves can be analyzed in tunable 2D systems. The proximity of these phases within the same system provides an exceptional opportunity to tune electrons through competing ordered phases, inducing dramatic changes in the electronic response potentially appealing for technological applications, whereas the reduced dimensionality can bring novel opportunities for their functional optimization and their control, e.g., via electrical gating or mechanical strain. The project aims at providing a comprehensive understanding of the subtle interplay between competing electronic phases in ultrathin transition-metal dichalcogenides by taking advantage of the synergy between the most advanced theoretical and experimental tools available in the project team.
Obiettivi
The main objective of the project is to combine several theoretical and experimental tools to study, characterize and predict the challenging physical properties of broken-symmetry electronic orders in 2D transition-metal dichalcogenides. On the theoretical side, we combine state-of-the-art ab-initio schemes for the computation of superconducting and charge-density-wave instabilities with field-theory approaches tailored to investigate the coexisting state and its spectroscopic properties. On the experimental side, ion-gated and strained devices based on representative semiconducting and semimetallic transition-metal dichalcogenides are studied with the twofold aim to attain so-far unexplored regions of the temperature-strain-doping phase diagram and to fully characterize the different phases. This synergetic approach will be used to address the still open question in the field, such as the role of electron-electron and spin orbit interactions or the modifications induced by doping/strain in the electronic band structure and their impact on ordered phases.
Data inizio attività
19/08/2019
Parole chiave
QUANTUM2D, PRIN, 2017
Ultimo aggiornamento: 31/07/2025