Structures of GaN(0001)-(2 × 2), -(4 × 4), and -(5 × 5) Surface Reconstructions

Qi Kun Xue, Q. Z. Xue, R. Z. Bakhtizin, Y. Hasegawa, I. S.T. Tsong, T. Sakurai, T. Ohno

Research output: Contribution to journalArticle

94 Citations (Scopus)

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 languageEnglish
Pages (from-to)3074-3077
Number of pages4
JournalPhysical review letters
Volume82
Issue number15
DOIs
Publication statusPublished - 1999
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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  • Cite this

    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