%0 Journal Article
%A Artaud, Alexandre
%A Rougemaille, Nicolas
%A Vlaic, Sergio
%A Renard, Vincent T.
%A Atodiresei, Nicolae
%A Coraux, Johann
%T Elastic properties of moiré lattices in epitaxial two-dimensional materials
%J Physical review / B
%V 106
%N 20
%@ 2469-9950
%C Woodbury, NY
%I Inst.
%M FZJ-2022-04412
%P L201402
%D 2022
%X 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.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000885029100005
%R 10.1103/PhysRevB.106.L201402
%U https://juser.fz-juelich.de/record/911086