Structural and Electronic Properties of GaN (0001)/α-Al₂O₃ (0001) Interface

Table 1

Some relevant interatomic distances and their variations (in parentheses) for the GaN/Al₂O₃  N-terminated interface. The numbers identifying the distances refer to Figure 1(b).

Distances (Å)
1-2 = 1.897 (0.073)	17-18 = 1.951 (0.000)
2-3 = 1.842 (0.129)	18-19 = 1.901 (0.011)
3-4 = 1.787 (0.433)	19-20 = 2.013 (−0.108)
4-5 = 1.896 (−0.041)	20-21 = 1.871 (0.041)
5-6 = 1.976 (−0.005)	21-22 = 1.991 (−0.025)
6-7 = 1.874 (0.097)	22-23 = 1.862 (0.051)
7-8 = 1.870 (−0.015)	23-24 = 1.906 (0.000)
8-9 = 1.855 (0.116)	24-25 = 1.855 (0.058)
9-10 = 1.753 (0.219)	25-26 = 1.902 (0.003)
10-11 = 1.890 (0.082)	26-27 = 1.859 (0.053)
11-12 = 1.991 (0.231)	27-28 = 1.902 (0.004)
12-13 = 1.882 (−0.027)	28-29 = 1.861 (0.051)
13-14 = 1.885 (0.086)	29-30 = 1.895 (0.011)
14-15 = 1.865 (0.107)	30-31 = 1.869 (0.043)
15-16 = 1.761 (0.094)	31-32 = 1.881 (0.025)
16-17 = 1.881 (0.090)	32-33 = 1.897 (0.015)