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Strongly correlated phenomena in twisted bilayers of graphene and transition metal dichacogenides

Descrizione del progetto

Sondare la dinamica dei materiali a doppio strato ritorti

La combinazione di materiali 2D in una pila verticale offre una miriade di interessanti opportunità. L’orientamento relativo degli strati 2D determina in definitiva le prestazioni del nuovo materiale ibrido se integrato in dispositivi funzionali. Finanziato dal programma di azioni Marie Skłodowska-Curie, il progetto TWISTM mira a svelare le proprietà fondamentali dei doppi strati di grafene e i dicalcogenuri dei metalli di transizione derivanti dalle interazioni tra molti corpi. Il progetto combinerà tecniche con sonde locali (microscopia a scansione di tunneling e microscopia ottica a scansione in campo vicino) su scala sub-nanometrica con misurazioni del trasporto di elettroni mesoscopici per determinare come le proprietà microscopiche influenzano il comportamento macroscopico di eterostrutture impilate verticalmente.

Obiettivo

Fundamental properties of 2D materials are dramatically modified when they are brought next to each other to form a vertical heterostructure. Then, the combination of the 2D layers as well as the relative orientation between them ultimately determines the performance of the new hybrid material. This presents tremendous new opportunities for manipulating the behaviour of 2D layered materials and ultimately achieving unprecedented control over their performance when integrated into highly specific functional devices.
However, research in this field is in its nascent stage and many exciting phenomena remain to be discovered. The main objective of TWISTM is to unravel the most fundamental properties of unexplored graphene- and transition metal dichalcogenide-based bilayers arising from many-body interactions. Progress here requires of a comprehensive microscopic picture of the fundamental properties of the heterostructures in clear connection to their macroscopic behaviour. TWISTM will tackle this challenge by using local probe techniques (STM and s-SNOM) with sub-nm resolution combined with mesoscopic electron transport measurements on in-house engineered twisted bilayers with accurate misalignment angles. TWISTM comprises three goals: i) to develop and optimize a fabrication method towards the achievement of high-quality twisted bilayers, ii) a multiscale search for collective electronic and optical phenomena arising from the coupling between the layers; iii) A full characterization of the superconducting and magnetic properties as a function of the chosen materials combination and twist angle. Overall the project aims at acquiring fundamental scientific knowledge with potential for technological applications that will be useful in both academia and industry. Furthermore, TWISTM will offer high-quality interdisciplinary training to a young researcher helping her to develop a promising independent scientific research career as well as her own scientific network.

Campo scientifico (EuroSciVoc)

Parole chiave

Programma(i)

Argomento(i)

Meccanismo di finanziamento

MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)

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Invito a presentare proposte

(si apre in una nuova finestra) H2020-MSCA-IF-2018

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Coordinatore

FREIE UNIVERSITAET BERLIN
Contributo netto dell'UE
€ 246 669,12
Indirizzo
KAISERSWERTHER STRASSE 16-18
14195 Berlin
Germania
Regione
Berlin Berlin Berlin
Tipo di attività
Higher or Secondary Education Establishments
Collegamenti
Costo totale
€ 246 669,12

Partner (1)