TY - JOUR
T1 - Coherent Atomic-Scale Ripples on Metallic Glasses Patterned by Low-Energy Ion Irradiation for Large-Area Surface Structuring
AU - Luo, Peng
AU - Jaramillo, Camilo
AU - Wallum, Alison Marie
AU - Liu, Zetai
AU - Zhao, Rui
AU - Shen, Laiquan
AU - Zhai, Yanqin
AU - Spear, Jessica Crystal
AU - Curreli, Davide
AU - Lyding, Joseph W.
AU - Gruebele, Martin
AU - Wang, Weihua
AU - Allain, Jean Paul
AU - Zhyang, Y.
N1 - Publisher Copyright:
© 2020 American Chemical Society.
PY - 2020/12/24
Y1 - 2020/12/24
N2 - Periodic surface structures at the nanometer or micrometer scale have been achieved by various methods, while atomic-scale surface structures over large areas are unavailable. Herein, we report the formation of highly coherent atomic-scale ripple patterns on bulk metallic glass (MG) surfaces by low-energy ion irradiation. The pattern arises through three consecutive stages: emergence of initial random dots, subsequent transition to ripples, and ordering of the ripple pattern through annihilation reactions of mobile defects, while the wavelength and amplitude remain invariant throughout the patterning. No pattern is generated for the crystalline counterpart at the same irradiation condition. These observations suggest a distinct ripple forming process typical of MGs associated with their enhanced surface mobility, which enables a controllable self-organization approach for large-area surface structuring with atomic-scale precision.
AB - Periodic surface structures at the nanometer or micrometer scale have been achieved by various methods, while atomic-scale surface structures over large areas are unavailable. Herein, we report the formation of highly coherent atomic-scale ripple patterns on bulk metallic glass (MG) surfaces by low-energy ion irradiation. The pattern arises through three consecutive stages: emergence of initial random dots, subsequent transition to ripples, and ordering of the ripple pattern through annihilation reactions of mobile defects, while the wavelength and amplitude remain invariant throughout the patterning. No pattern is generated for the crystalline counterpart at the same irradiation condition. These observations suggest a distinct ripple forming process typical of MGs associated with their enhanced surface mobility, which enables a controllable self-organization approach for large-area surface structuring with atomic-scale precision.
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U2 - 10.1021/acsanm.0c02548
DO - 10.1021/acsanm.0c02548
M3 - Article
AN - SCOPUS:85097896929
SN - 2574-0970
VL - 3
SP - 12025
EP - 12033
JO - ACS Applied Nano Materials
JF - ACS Applied Nano Materials
IS - 12
ER -