Full text loading...
DDM in one monolayer along the dislocation line of -screw dislocation in AlN (GaN and InN). Closed and open circles represent metal and N atoms, respectively. The length of the arrows is proportional to the magnitude of the differential displacement between the neighboring atoms along Burger vector, and their direction represents the sign of the displacement. “×” labels the position of the dislocation line. The numbers point out the different atomic sites.
Total energy (per ) stored in a cylinder of radius centered at the dislocation line as a function of of -screw dislocations in AlN, GaN, and InN, respectively. The arrows point out the respective core radius .
Distance dependence of the core energy variation of -screw dislocation in GaN (AlN) when an In atom is introduced at the different sites (as shown in Fig. 1).
Distance dependence of the interaction energy (per ) between -screw dislocation and In atom in GaN (AlN). (solid) and (dashed) are the fitting curves according to Eq. (1).
Prelogarithmic factor , core radius , and core energy (per ) of -screw dislocations in AlN, GaN, and InN, respectively.
Article metrics loading...