Major stable surface of silicon: Si(20 4 23)

Zheng Gai, R. G. Zhao, Wenjie Li, Y. Fujikawa, Toshio Sakurai, W. S. Yang

    Research output: Contribution to journalArticlepeer-review

    27 Citations (Scopus)


    Clean and well-annealed Si(515), (516), and (405) surfaces have been investigated by means of scanning tunnel microscope (STM) and low-energy electron diffraction and it turns out that these surfaces are unstable while Si(20 4 23) is stable, because the former three all consist of {20 4 23} facets. On the basis of the high-resolution dual-bias STM images of the Si(20 4 23) 1 ×1 surface, a detailed structural model of the surface has been proposed for further investigation. As the unit cell of the Si(20 4 23) surface has its own structure rather than consisting of nanofacets of other stable surface(s) the surface is identified, by definition, as a major stable surface (or MAJOR). Interestingly, among all MAJOR's of silicon that have been found so far (20 4 23) is the only one that silicon does not share with germanium.

    Original languageEnglish
    Article number125201
    Pages (from-to)1252011-1252016
    Number of pages6
    JournalPhysical Review B - Condensed Matter and Materials Physics
    Issue number12
    Publication statusPublished - 2001 Sep 15

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics


    Dive into the research topics of 'Major stable surface of silicon: Si(20 4 23)'. Together they form a unique fingerprint.

    Cite this