Conte, Felice (2021) Modeling and design of novel van der Waals materials for the quantum simulation. [Tesi di dottorato]
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| Tipologia del documento: | Tesi di dottorato |
|---|---|
| Lingua: | English |
| Titolo: | Modeling and design of novel van der Waals materials for the quantum simulation |
| Autori: | Autore Email Conte, Felice felice_conte_@libero.it |
| Data: | 11 Dicembre 2021 |
| Numero di pagine: | 148 |
| Istituzione: | Università degli Studi di Napoli Federico II |
| Dipartimento: | Fisica |
| Dottorato: | Quantum Technologies (Tecnologie Quantistiche) |
| Ciclo di dottorato: | 34 |
| Coordinatore del Corso di dottorato: | nome email Tafuri, Francesco francesco.tafuri@unina.it |
| Tutor: | nome email Cantele, Giovanni [non definito] |
| Data: | 11 Dicembre 2021 |
| Numero di pagine: | 148 |
| Parole chiave: | Two-dimensional materials, van der Waals heterostructures, density functional theory, twist angle, magnetism, quantum simulation. |
| Settori scientifico-disciplinari del MIUR: | Area 02 - Scienze fisiche > FIS/03 - Fisica della materia |
| Depositato il: | 20 Dic 2021 18:04 |
| Ultima modifica: | 28 Feb 2024 11:42 |
| URI: | http://www.fedoa.unina.it/id/eprint/14299 |
Abstract
Nowadays, two-dimensional (2D) materials and van der Waals (vdW) heterostructures attract the research interest due to their remarkable properties and physical applications. They intrinsically show an unprecedented number of degrees of freedom (DoFs), such as interlayer coupling, twist angle, order and number of layers, directly affecting the interactions between their microscopical components. Manipulation of such DoFs allows to explore intriguing phenomena of complex branches of condensed matter physics, such as Mott insulating behavior, superconductivity, and magnetism, with a high degree of tunability. As a consequence, the quantum simulation idea, proposed by Richard Feynman in 1982, applied on vdW heterostructures can reach its full realization, since the range of possible physical systems enormously expands and the same occurs to the target quantum models or phenomena of the quantum simulation. For these reasons, this thesis investigates the properties of some of the most recent and intriguing 2D and vdW materials on which the condensed matter and quantum simulation communities are focused. Using first-principles calculations carried out within the DFT framework, tight-binding approach, and MC simulations, this work focuses on design, simulation, and modeling of platforms that can be used for the quantum simulation of correlated physics, such as superconductivity and quantum magnetism. Among the countless DoFs, stacking, twist angle, magnetism, and strain have been used and investigated as control knobs to trigger novel phenomena and matter phases, finding out unexpected results that can be easily implemented in experiments.
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