Growth and characterization of aliovalent ion-doped LiCaAlF6 single crystals

Hiroki Sato, Hiroshi Machida, Martin Nikl, Akira Yoshikawa, Tsuguo Fukuda

Research output: Contribution to journalConference articlepeer-review

10 Citations (Scopus)

Abstract

Two-inch size LiCaAlF6 (LiCAF) single crystals doped with Mg2+ and Ba2+ were successfully grown by the Czochralski technique. Optical absorption measurements in the UV/VIS spectral regions following X-ray irradiation (radiation-induced absorption) were performed in order to investigate the radiation damage of the crystals. It is found that the amplitude of the F-absorption band is suppressed more than a factor of 3 by Mg doping, while in the case of Ba-doped LiCAF, no significant variation is observed. For Mg-doped crystals, the optimum doping concentration is about 0.2mol% of Mg2+. The crystallinity was studied using X-ray rocking curve analysis. The precise measurement of the refractive index showed that refractive index of LiCAF dose not change by the Mg2+ doping, within the doping range of Mg2+<1.0mol%.

Original languageEnglish
Pages (from-to)83-89
Number of pages7
JournalJournal of Crystal Growth
Volume250
Issue number1-2
DOIs
Publication statusPublished - 2003 Mar
EventACCGE-14 - Seatle, WA, United States
Duration: 2002 Aug 42002 Aug 9

Keywords

  • A1. Doping
  • A1. F-center
  • A1. Induced absorption
  • A2. Czochralski method
  • B1. LiCaAlF
  • B2. Optical materials

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

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