Elastically buckled film-substrate system as a two-dimensional crystal
Wenqing Zhu (朱文清)
Phys. Rev. B 112, L100101 (2025) - Published 4 September, 2025
Elastic buckling in soft matter is fundamental to applications from soft robotics to optical metasurfaces. Here, the authors demonstrate that the strain energy functional of a linear elastic film on a nonlinear elastic substrate can be mapped onto the density functional of phase-field crystal theory, with the film’s deflection field corresponding to the atomic density field. This equivalence reveals that the buckled film-substrate system under compression is mathematically analogous to a two-dimensional crystal formed upon cooling, bridging continuum mechanics and crystallization theory.
Missing link between the two-dimensional quantum Hall problem and one-dimensional quasicrystals
Anuradha Jagannathan
Phys. Rev. B 112, L100102 (2025) - Published 17 September, 2025

















