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Size‐dependent strain in fivefold twins of gold
Author(s) -
Wu Hao,
Yu Rong,
Zhu Jing,
Chen Wei,
Li Yadong,
Wang Tao
Publication year - 2021
Publication title -
acta crystallographica section b
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.604
H-Index - 33
ISSN - 2052-5206
DOI - 10.1107/s2052520620014791
Subject(s) - materials science , transmission electron microscopy , symmetry (geometry) , bending , strain (injury) , molecular physics , crystal twinning , condensed matter physics , crystallography , physics , nanotechnology , geometry , chemistry , microstructure , composite material , mathematics , medicine
Multiple twinned structures are common in low‐dimensional materials. They are intrinsically strained due to the geometrical constraint imposed by the non‐crystallographic fivefold symmetry. In this study, the strain distributions in sub‐10 nm fivefold twins of gold have been analyzed by combining aberration‐corrected transmission electron microscopy and first‐principles calculations. Bending of atomic planes has been measured by both experiments and calculations, and its contribution to the filling of the angular gap was shown to be size‐dependent.