Stable structure and optical properties of fused silica with NBOHC-E′ defect
Lu Peng-Fei1, 2, †, , Wu Li-Yuan1, Yang Yang1, Wang Wei-Zheng1, Zhang Chun-Fang3, Yang Chuang-Hua4, Su Rui3, Chen Jun5
       

Predicted preferable NBOHC-E′ structures from different models. Model A refers to the Si1–O1 bond in Fig. 1. Model B represents a model with the defect at a different location from model A. Model C means a small supercell with 72 atoms. Total energy marked on the Y axis represents the energy relative to the energy value of 1.6 Å in model A.