Journal Article

FZJ-2022-04412

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Elastic properties of moiré lattices in epitaxial two-dimensional materials

Artaud, A. ; Rougemaille, N. ; Vlaic, S. ; Renard, V. T. ; Atodiresei, N.FZJ* ; Coraux, J. (Corresponding author)

2022
Inst. Woodbury, NY

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Please use a persistent id in citations: http://hdl.handle.net/2128/32429  doi:10.1103/PhysRevB.106.L201402

Abstract: Unlike conventional two-dimensional (2D) semiconductor superlattices, moiré patterns in 2D materials are flexible and their electronic, magnetic, optical, and mechanical properties depend on their topography. Within a continuous+atomistic theory treating 2D materials as crystalline elastic membranes, we abandon the flat-membrane scenario usually assumed for these materials and address out-of-plane deformations. We confront our predictions to experimental analyses on model systems, epitaxial graphene, and MoS2 on metals and reveal that compression/expansion and bending energies stored in the membrane can compete with adhesion energy, leading to a subtle moiré wavelength selection and the formation of wrinkles.

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Contributing Institute(s):

1. Quanten-Theorie der Materialien (IAS-1)
2. Quanten-Theorie der Materialien (PGI-1)
3. JARA-FIT (JARA-FIT)
4. JARA - HPC (JARA-HPC)

Research Program(s):

1. 5211 - Topological Matter (POF4-521) (POF4-521)

Appears in the scientific report 2022

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Electronics and Telecommunications Collection ; Current Contents - Electronics and Telecommunications Collection ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; Essential Science Indicators ; IF < 5 ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Science Citation Index Expanded ; Web of Science Core Collection

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