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Programming twist angle and strain profiles in 2D materials

Kapfer, Maëlle ; Jessen, Bjarke S ; Eisele, Megan E ; Fu, Matthew ; Danielsen, Dorte R ; Darlington, Thomas P ; Moore, Samuel L ; Finney, Nathan R ; Marchese, Ariane ; Hsieh, Valerie ; Majchrzak, Paulina ; Jiang, Zhihao ; Biswas, Deepnarayan ; Dudin, Pavel ; Avila, José ; Watanabe, Kenji ; Taniguchi, Takashi ; Ulstrup, Søren ; Bøggild, Peter ; Schuck, P J ; Basov, Dmitri N ; Hone, James ; Dean, Cory R

Science (American Association for the Advancement of Science), 2023-08, Vol.381 (6658), p.677-681 [Periódico revisado por pares]

United States: The American Association for the Advancement of Science

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Título:
Programming twist angle and strain profiles in 2D materials
Autor: Kapfer, Maëlle ; Jessen, Bjarke S ; Eisele, Megan E ; Fu, Matthew ; Danielsen, Dorte R ; Darlington, Thomas P ; Moore, Samuel L ; Finney, Nathan R ; Marchese, Ariane ; Hsieh, Valerie ; Majchrzak, Paulina ; Jiang, Zhihao ; Biswas, Deepnarayan ; Dudin, Pavel ; Avila, José ; Watanabe, Kenji ; Taniguchi, Takashi ; Ulstrup, Søren ; Bøggild, Peter ; Schuck, P J ; Basov, Dmitri N ; Hone, James ; Dean, Cory R
Assuntos: Atomic force microscopy ; Boron ; Boron nitride ; Control methods ; Graphene ; Superlattices ; Two dimensional materials
É parte de: Science (American Association for the Advancement of Science), 2023-08, Vol.381 (6658), p.677-681
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: Moiré superlattices in twisted two-dimensional materials have generated tremendous excitement as a platform for achieving quantum properties on demand. However, the moiré pattern is highly sensitive to the interlayer atomic registry, and current assembly techniques suffer from imprecise control of the average twist angle, spatial inhomogeneity in the local twist angle, and distortions caused by random strain. We manipulated the moiré patterns in hetero- and homobilayers through in-plane bending of monolayer ribbons, using the tip of an atomic force microscope. This technique achieves continuous variation of twist angles with improved twist-angle homogeneity and reduced random strain, resulting in moiré patterns with tunable wavelength and ultralow disorder. Our results may enable detailed studies of ultralow-disorder moiré systems and the realization of precise strain-engineered devices.
Editor: United States: The American Association for the Advancement of Science
Idioma: Inglês

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Programming twist angle and strain profiles in 2D materials

United States: The American Association for the Advancement of Science

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