Striped twisted state in the orientational epitaxy on quasicrystals
Mesoscale and Nanoscale Physics
2025-08-21 v1 Materials Science
Abstract
The optimal "twisted" geometry of a crystalline layer on a crystal is long known, but that on a quasicrystal is still unknown and open. We predict analytically that the layer equilibrium configuration will generally exhibit a nonzero misfit angle. The theory perfectly agrees with numerical optimization of a colloid monolayer on a quasiperiodic decagonal optical lattice. Strikingly different from crystal-on-crystal epitaxy, the structure of the novel emerging twisted state exhibits an unexpected stripe pattern. Its high anisotropy should reflect on the tribomechanical properties of this unconventional interface.
Keywords
Cite
@article{arxiv.2501.06851,
title = {Striped twisted state in the orientational epitaxy on quasicrystals},
author = {Nicola Manini and Mario Forzanini and Sebastiano Pagano and Marco Bellagente and Martino Colombo and Dario Bertazioli and Tommaso Salvalaggio and Andrea Vanossi and Davide Vanossi and Emanuele Panizon and Erio Tosatti and Giuseppe E. Santoro},
journal= {arXiv preprint arXiv:2501.06851},
year = {2025}
}
Comments
6 pages, 4 figures + Supplemental Material (16 pages, 11 figures)