Ab initio calculations on oxygen vacancy defects in strained amorphous silica
Zhou Bao-Hua1, †, Zhang Fu-Jie1, Liu Xiao1, Song Yu2, 3, Zuo Xu1, 4, ‡, ‡
       

Thermodynamic charge-state transition levels of (a) three unpuckered configurations (blue short lines) and (b) five dimer configurations (black and red short lines) at 0%, 3%, and 7% strains. The red line in (b) identifies the dimer configuration with the relaxation channel influenced by strain.