The Nanoscale and Quantum Phenomena Institute (NQPI) Seminar Series is pleased to welcome Louise Rosset, University of Oxford, as our featured speaker on Thursday, November 20 at 4:10 p.m. Seminars are held in Walter Hall 145 and are also available virtually via Microsoft Teams.

Title: Structural insights into amorphous silicon from atomistic machine learning

Abstract: Amorphous silicon (a-Si) is a prototypical disordered network, yet experimental results have not been fully unified under one theoretical model of its atomistic structure.

Using a computationally efficient machine-learning interatomic potential, we systematically sample the configurational space of a-Si by simulated melt-quenching and build a large dataset of silicon structures, probing the limit between amorphization and crystallization. Our ex...