Abstract
Various reconstructions on the GaN(0001) surface are studied by scanning tunneling microscopy (STM). Based on the comparison between the STM observations and first-principles total-energy calculations, we propose an adatom scheme for the basic 2 × 2 and 4 × 4 structures, and others as well. It is revealed that the 5 × 5 phase consists of a linear chain of unevenly displaced Ga adatoms along the [ 1120] direction due to lattice relaxation.
| Original language | English |
|---|---|
| Pages (from-to) | 3074-3077 |
| Number of pages | 4 |
| Journal | Physical review letters |
| Volume | 82 |
| Issue number | 15 |
| DOIs | |
| Publication status | Published - 1999 |
| Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy(all)
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Xue, Q. K., Xue, Q. Z., Bakhtizin, R. Z., Hasegawa, Y., Tsong, I. S. T., Sakurai, T., & Ohno, T. (1999). Structures of GaN(0001)-(2 × 2), -(4 × 4), and -(5 × 5) Surface Reconstructions. Physical review letters, 82(15), 3074-3077. https://doi.org/10.1103/PhysRevLett.82.3074