Theory of threading edge and screw dislocations in GaN

被引:316
作者
Elsner, J
Jones, R
Sitch, PK
Porezag, VD
Elstner, M
Frauenheim, T
Heggie, MI
Oberg, S
Briddon, PR
机构
[1] TECH UNIV,D-09107 CHEMNITZ,GERMANY
[2] UNIV SUSSEX,CPES,BRIGHTON BN1 9QJ,E SUSSEX,ENGLAND
[3] UNIV LULEA,DEPT MATH,S-97187 LULEA,SWEDEN
[4] UNIV NEWCASTLE UPON TYNE,DEPT PHYS,NEWCASTLE TYNE NE1 7RU,TYNE & WEAR,ENGLAND
关键词
D O I
10.1103/PhysRevLett.79.3672
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The atomic structures, electrical properties, and line energies for threading screw and threading edge dislocations of wurtzite GaN are calculated within the local-density approximation. Both dislocations are electrically inactive with a band gap free from deep levels. These results are understood to arise from relaxed core structures which are similar to (<10(1)over bar 0>) surfaces. [S0031-9007(97)04460-8].
引用
收藏
页码:3672 / 3675
页数:4
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