Doubly charged silicon vacancy center, Si-N complexes, and photochromism in N and Si codoped diamond
Doubly charged silicon vacancy center, Si-N complexes, and photochromism in N and Si codoped diamond
Diamond samples containing silicon and nitrogen are shown to be heavily photochromic, with the dominant visible changes due to simultaneous change in total ${\mathrm{SiV}}^{0/\ensuremath{-}}$ concentration. The photochromism treatment is not capable of creating or destroying SiV defects, and thus we infer the presence of the optically inactive ${\mathrm{SiV}}^{2\ensuremath{-}}$ . We …