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STRAIN2EXTREME

Financiado

Straining electromechanical coupling in layered crystals to new extremes

"Inherent stability of layered 2D materials supports a remarkably large strain along the plane of these 1-atom-thick crystals. For example, graphene and MoS2 can stretch, in principle, by 20% - ten times more than the typical intr... ver más

30/09/2024

TAU

2M€

Presupuesto del proyecto: 2M€

Líder del proyecto

TEL AVIV UNIVERSITY No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Ver 2 Participantes

Financiación concedida El organismo H2020 notifico la concesión del proyecto el día 2024-09-30

Línea de financiación objetivo El proyecto se financió a través de la siguiente ayuda:

ERC-2019-STG: ERC Starting Grant

I+D

Cerrada hace 6 años

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2 Participantes

TAU

1.77M€ | Lider

AGROALIMENTARI MAS ULOT

440.27K€ | Participante

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27-11-2024: DGIPYME En las últimas 48 horas el Organismo DGIPYME ha otorgado 1 concesiones

27-11-2024: FUNDACION-EOI En las últimas 48 horas el Organismo FUNDACION EOI ha otorgado 2 concesiones

Duración del proyecto: 60 meses Fecha Inicio: 2019-09-27
Fecha Fin: 2024-09-30

Líder del proyecto

TEL AVIV UNIVERSITY

TRL 4-5

Presupuesto del proyecto 2M€

Descripción del proyecto "Inherent stability of layered 2D materials supports a remarkably large strain along the plane of these 1-atom-thick crystals. For example, graphene and MoS2 can stretch, in principle, by 20% - ten times more than the typical intrinsic breakdown strain of 3D crystals. Such extreme deformations of the interatomic distance can drive exciting structural phase transitions, support fascinating electronic orders, and pro-foundly impact the electronic or optical response. Individually, however, pulling these ultimately thin materials to reliably approach their intrinsic limit poses great challenge. Cracks, defects, and out-of-plane motion all motivate early rupture, that prevented ap-plicable demonstration of extreme strains so far. STRAIN2EXTREME, instead, relies on recent advances in Van-der-Waals (VdW) structures; Sandwiched between thin impermeable layers the mechanical stability is reinforced, while suppressing unwanted chemistry and contamination at these ""all-surface"" materials. Notably, the minute amount of defects, dangling bonds, and disorder, do not pin-down the strain to relax locally to the rigid substrate as in com-mon interfaces. It results in a nearly frictionless sliding between the weakly interacting layers. Based on this finding, I set forward an entirely new approach to pull the structures while supporting them on a super-lubricant substrate. This support allows us to gradually narrow the shape into sub-micrometre constrictions, and ""focus"" a moderate pulling force to induce extreme local strains reliably. Moreover, we directly control the gradient of the strain in space by the precise shape. Remarkably, fixed strain gradients, can induce uniform pseudo-vector-potentials of extreme strength. Using the unique mechanics and outstanding lubricity of VdW structure, I intend to realize highly ballistic time-reversal-protected transport, demonstrate a new ""pseudo-Hall"" effect, and explore crystal-induced electromagnetic fields in moire' super-lattices."

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