Emerging Chirality and Moiré Dynamics in Twisted Layered Material Heterostructures
Source abstract
Abstract
Moiré superstructures arising at twisted 2D interfaces have recently attracted the attention of the scientific community due to exotic quantum states and unique mechanical and tribological behaviors that they exhibit. Here, we predict the emergence of chiral distortions in twisted layered interfaces of finite dimensions. This phenomenon originates in intricate interplay between interfacial interactions and contact boundary constraints. A metric termed the fractional chiral area is introduced to quantify the overall chirality of the moiré superstructure and to characterize its spatial distribution. Despite the equilibrium nature of the discovered energetic and structural chirality effects, they are shown to be manifested in the twisting dynamics of layered interfaces, which demonstrates a continuous transition from stick-slip to smooth rotation with no external trigger.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: 2D Materials and Applications · Graphene research and applications · Topological Materials and Phenomena
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
CNR-IOM − Istituto Officina dei Materiali, c/o SISSA, Via Bonomea 265, Trieste 34136, Italy
International School for Advanced Studies (SISSA), Via Bonomea 265, Trieste 34136, Italy
School of Chemistry and The Sackler Center for Computational Molecular and Materials Science, Tel Aviv University, Tel Aviv 6997801, Israel
Department of Modern Mechanics, University of Science and Technology of China, Hefei, Anhui 230026, China
Dipartimento di Fisica, Università degli Studi di Milano, Via Celoria 16, Milano 20133, Italy
Institutt for maskinteknikk og produksjon, NTNU, Richard Birkelands vei 2B, Trondheim 7034, Norway
Funding
Naomi Foundation · Israel Science Foundation · Ministero dell?Istruzione, dell?Universit? e della Ricerca · Center for Nanoscience and Nanotechnology, Tel Aviv University · National Natural Science Foundation of China · H2020 European Research Council
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