Polarity of GaN single crystals prepared with Na flux

Hisanori Yamane, Masahiko Shimada, Tadashi Endo, Francis J. Disalvo

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


The polarity of GaN platelet and prismatic single crystals grown in sodium flux at 750°C was investigated by X-ray single-crystal diffraction. The smooth (0001̄) facet of platelet single crystals corresponded to the N-terminated side. The (0001) facet on which small hillocks were observed corresponded to the Ga-terminated plane. The c-axis direction from N to Ga atoms was defined as running from the pedion (flat base) to the pyramid (apex) of the prismatic crystals.

Original languageEnglish
Pages (from-to)3436-3440
Number of pages5
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Issue number6 A
Publication statusPublished - 1998 Jun
Externally publishedYes


  • Gan single crystals
  • Polarity
  • Surface morphology
  • X-ray anomalous dispersion

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)


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