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, ‡, ‡
       

Relative total energies of PCOVs in different configurations versus strain. The strain-induced structural transitions are circled on the lines and the associated structures are illustrated in the insets.