TY  - JOUR
AU  - Artaud, Alexandre
AU  - Rougemaille, Nicolas
AU  - Vlaic, Sergio
AU  - Renard, Vincent T.
AU  - Atodiresei, Nicolae
AU  - Coraux, Johann
TI  - Elastic properties of moiré lattices in epitaxial two-dimensional materials
JO  - Physical review / B
VL  - 106
IS  - 20
SN  - 2469-9950
CY  - Woodbury, NY
PB  - Inst.
M1  - FZJ-2022-04412
SP  - L201402
PY  - 2022
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000885029100005
DO  - DOI:10.1103/PhysRevB.106.L201402
UR  - https://juser.fz-juelich.de/record/911086
ER  -