Tong Zhang1, Binglun Yin1,2, Pan Wang3, Yang Gao1,2,*
The International Conference on Computational & Experimental Engineering and Sciences, Vol.25, No.3, pp. 1-2, 2023, DOI:10.32604/icces.2023.010131
Abstract Solid gold usually holds face-centered-cubic structure and relatively low strength of 102 MPa. When the
dimension is reduced to the nanoscale, the strength of metal should increase accordingly, due to size effect
or complex nanostructures [1-3]. However, reported maximum strength in gold nanostructures is yet
considerably lower than the ideal strength (~6 GPa), referring to the stress at elastic instability in a defectfree crystal with infinite dimensions [3-5]. Herein, the ideal strength of gold is experimentally achieved in a
quasi-two-dimensional defect-free single crystalline nanosheet with hexagonal-close-packed (HCP)
structure. Ultrathin gold nanosheets with a high aspect ratio (lateral size >101 μm,… More >
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