| Budget Amount *help |
¥44,850,000 (Direct Cost: ¥34,500,000、Indirect Cost: ¥10,350,000)
Fiscal Year 2020: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
Fiscal Year 2019: ¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000)
Fiscal Year 2018: ¥20,150,000 (Direct Cost: ¥15,500,000、Indirect Cost: ¥4,650,000)
|
|---|
| Outline of Final Research Achievements |
In this study, first-principles calculations were performed for glide dislocations in ZnS and ZnTe, in order to reveal a physical origin of experimentally observed light-dependent plasticity. It was experimentally reported that glide dislocations in ZnS are dissociated into two partial dislocations with stacking faults in between. The present calculations revealed that glide partial dislocations in ZnS tend to have unreconstructed core structures in their ground state. However, atomic structures of the glide dislocations can be reconstructed in the presence of carriers. Since atomic reconstruction of dislocation cores leads to decreased dislocation mobilities, the glide dislocations in ZnS can be strongly restricted in their motion when ZnS is exposed to external visible lights. It was also found that ZnTe also exhibits the similar results.
|
