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Strained2DMaterials SIGNED

Unlocking new physics in controllably strained two-dimensional materials

Total Cost €


EC-Contrib. €






 Strained2DMaterials project word cloud

Explore the words cloud of the Strained2DMaterials project. It provides you a very rough idea of what is the project "Strained2DMaterials" about.

monolayer    translate    bilayer    electrical    adjusted    plane    adjust    hall    experimental    distinguishing    relation    regime    2d    strain    inaccessible    uniform    situ    external    topology    determined    dependent    direct    pseudomagnetic    observe    amplitudes    previously    crystals    engineer    mode    mobility    band    bandgap    thermal    energy    spring    metal    polymers    precisely    samples    narrow    phonons    binding    emergence    excitons    weak    quantum    materials    transition    controllably    tmdcs    strained    shown    excitonic    magnetic    insulator    constant    flexural    first    graphene    dispersion    berry    dominate    entropic    dichalcogenides    mechanical    atomic    time    fps    look    tool    dimensional    quantization    quasi    dramatic    indirect    distributions    near    suspended    2dacs    interplay    gap    engineering    optical    zero    hard    softening    disorder    tmdc    energies    tools    phenomena    structure   

Project "Strained2DMaterials" data sheet

The following table provides information about the project.


Organization address
city: BERLIN
postcode: 14195

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Germany [DE]
 Total cost 1˙997˙452 €
 EC max contribution 1˙997˙452 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2014-STG
 Funding Scheme ERC-STG
 Starting year 2015
 Duration (year-month-day) from 2015-11-01   to  2021-10-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    FREIE UNIVERSITAET BERLIN DE (BERLIN) coordinator 1˙997˙452.00


 Project objective

'We will use strain engineering as an enabling tool to study previously inaccessible or hard-to-study phenomena in two-dimensional atomic crystals (2DACs: graphene, bilayer graphene, and monolayer transition metal dichalcogenides). In our first objective, we develop unique experimental tools to control and characterize mechanical strain in 2DACs. These are the distinguishing features of our approach: (i) The use of very low disorder suspended devices; (ii) Both uniform and controlled non-uniform strain will be induced; (iii) The level of strain will be precisely adjusted and determined in-situ during measurements. We will then use controllably-strained samples to study electrical, mechanical, thermal, and optical properties of 2DACs:

Application of strain in suspended graphene will be shown to control amplitudes and dispersion relation of flexural out-of-plane phonons (FPs), a mode unique to 2D and quasi-2D materials. We will demonstrate, for the first time, that FPs dominate electrical, thermal, and mechanical of suspended graphene. Moreover, we will show dramatic mechanical softening of graphene in the regime of weak strain, similar to 'entropic spring' behaviour seen in polymers.

We will engineer strain distributions in high-mobility suspended graphene devices that translate into near-constant 'pseudomagnetic field' and observe Quantum Hall-like quantization at zero external magnetic field.

Strain-induced changes in topology of the band structure of bilayer graphene will be shown to affect Quantum Hall states and the Berry phase.

Through strain engineering, we will controllably adjust - and even make spatially dependent - the band gap energy and binding energies of excitons in monolayer transition metal dichalcogenides (TMDCs). We will study complex interplay between and direct and indirect excitons and look for emergence of a new phase of matter, an excitonic insulator, in strained narrow-bandgap TMDC. '


year authors and title journal last update
List of publications.
2017 Ryan J. T. Nicholl, Nickolay V. Lavrik, Ivan Vlassiouk, Bernadeta R. Srijanto, Kirill I. Bolotin
Hidden Area and Mechanical Nonlinearities in Freestanding Graphene
published pages: 266101, ISSN: 0031-9007, DOI: 10.1103/PhysRevLett.118.266101
Physical Review Letters 118/26 2020-01-20
2018 Rajan Singh, Ryan J.T. Nicholl, Kirill I. Bolotin, Saikat Ghosh
Motion Transduction with Thermo-mechanically Squeezed Graphene Resonator Modes
published pages: 6719-6724, ISSN: 1530-6984, DOI: 10.1021/acs.nanolett.8b02293
Nano Letters 18/11 2020-01-20
2018 Andrey R. Klots, Benjamin Weintrub, Dhiraj Prasai, Daniel Kidd, Kalman Varga, Kirill A. Velizhanin, Kirill I. Bolotin
Controlled dynamic screening of excitonic complexes in 2D semiconductors
published pages: , ISSN: 2045-2322, DOI: 10.1038/s41598-017-18803-y
Scientific Reports 8/1 2020-01-20
2018 Xiaomin Xu, Thorsten Schultz, Ziyu Qin, Nikolai Severin, Benedikt Haas, Sumin Shen, Jan N. Kirchhof, Andreas Opitz, Christoph T. Koch, Kirill Bolotin, Jürgen P. Rabe, Goki Eda, Norbert Koch
Microstructure and Elastic Constants of Transition Metal Dichalcogenide Monolayers from Friction and Shear Force Microscopy
published pages: 1803748, ISSN: 0935-9648, DOI: 10.1002/adma.201803748
Advanced Materials 30/39 2020-01-20

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