Ar+ ion irradiation and reduction effect of the MgO: LiNbO 3 single crystals

Ill Won Kim, Sok Won Kim, Yoon Hwae Hwang, Byung Moon Jin, Sung Chul Kim, V. F. Pichugin, T. S. Frangulian, V. F. Stoliarenko

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


The edge of optical absorption of MgO:LiNbO3 crystal due to ion irradiation shifts toward the shorter wavelength region with increasing Mg concentration. The introduction of Mg into LiNbO3 reduces the density of anti-site defects and changes the charge of NbLi4+. In the surface layer of MLN crystal which is irradiated by Ar+ ion, the weak-bound oxygen appears as a result of the activation of anti-site defects electrons and self-trapped as NbLi4+ or small polarons.

Original languageEnglish
Pages (from-to)263-268
Number of pages6
Issue number1
Publication statusPublished - 1 Dec 2001


  • anti-site defects
  • ion irradiation
  • MgO:LiNbO
  • optical absorption
  • surface conductivity

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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