Striped twisted state in the orientational epitaxy on quasicrystals

Fuente: arXiv
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Hauptverfasser: Manini, Nicola, Forzanini, Mario, Pagano, Sebastiano, Bellagente, Marco, Colombo, Martino, Bertazioli, Dario, Salvalaggio, Tommaso, Vanossi, Andrea, Vanossi, Davide, Panizon, Emanuele, Tosatti, Erio, Santoro, Giuseppe E.
Format: Preprint
Veröffentlicht: 2025
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author Manini, Nicola
Forzanini, Mario
Pagano, Sebastiano
Bellagente, Marco
Colombo, Martino
Bertazioli, Dario
Salvalaggio, Tommaso
Vanossi, Andrea
Vanossi, Davide
Panizon, Emanuele
Tosatti, Erio
Santoro, Giuseppe E.
author_facet Manini, Nicola
Forzanini, Mario
Pagano, Sebastiano
Bellagente, Marco
Colombo, Martino
Bertazioli, Dario
Salvalaggio, Tommaso
Vanossi, Andrea
Vanossi, Davide
Panizon, Emanuele
Tosatti, Erio
Santoro, Giuseppe E.
contents 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.
format Preprint
id arxiv_https___arxiv_org_abs_2501_06851
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Striped twisted state in the orientational epitaxy on quasicrystals
Manini, Nicola
Forzanini, Mario
Pagano, Sebastiano
Bellagente, Marco
Colombo, Martino
Bertazioli, Dario
Salvalaggio, Tommaso
Vanossi, Andrea
Vanossi, Davide
Panizon, Emanuele
Tosatti, Erio
Santoro, Giuseppe E.
Mesoscale and Nanoscale Physics
Materials Science
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.
title Striped twisted state in the orientational epitaxy on quasicrystals
topic Mesoscale and Nanoscale Physics
Materials Science
url https://arxiv.org/abs/2501.06851