Atomistic Mechanism Underlying the Si ( 111 ) − ( 7 × 7 ) Surface Reconstruction Revealed by Artificial Neural-Network Potential

The 7×7 reconstruction of the Si(111) surface represents arguably the most fascinating surface reconstruction so far observed in nature. Yet, the atomistic mechanism underpinning its formation remains unclear after it was discovered sixty years ago. Experimentally, it is observed post priori so that...

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Bibliographic Details
Published in:Physical review letters 2021-04, Vol.126 (17), p.176101, Article 176101
Main Authors: Hu, Lin, Huang, Bing, Liu, Feng
Format: Article
Language:English
Subjects:
Archaeology
Density functional theory
Diffusion
Dimers
Empirical analysis
Ground state
Machine learning
MATERIALS SCIENCE
Neural networks
Physics
Reconstruction
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