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

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

Objective

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.
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Coordinator

FREIE UNIVERSITAET BERLIN

Address

Kaiserswerther Strasse 16-18
14195 Berlin

Germany

Activity type

Higher or Secondary Education Establishments

EU Contribution

€ 246 669,12

Partners (1)

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TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK

Project information

Grant agreement ID: 844271

Status

Grant agreement signed

  • Start date

    1 February 2020

  • End date

    31 January 2023

Funded under:

H2020-EU.1.3.2.

  • Overall budget:

    € 246 669,12

  • EU contribution

    € 246 669,12

Coordinated by:

FREIE UNIVERSITAET BERLIN

Germany