Dopant segregation in rare earth doped lutetium aluminum garnet single crystals grown by the micro-pulling down method

Makoto Sugiyama, Yuui Yokota, Yutaka Fujimoto, Takayuki Yanagida, Yoshisuke Futami, Shunsuke Kurosawa, Akira Yoshikawa

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

Nd, Ho, Er, and Tm doped lutetium aluminum garnet (LuAG) single crystals were grown using the micro-pulling down (μ-PD) method. The crystals were produced from the melts containing 3 mol% of the dopants. The axial and radial dopant distribution were measured by electron probe micro analysis. Nd 3+ and Ho 3+ ions concentrated in the rim (k 0<1) and the radial concentration showed concave curvature. k 0 is the segregation coefficient of the dopant with respect to the given host phase. In the case of Er 3+ and Tm 3+ ions, the k 0 value is considered to be nearly 1 and the radial dopant distribution profiles were almost flat.

Original languageEnglish
Pages (from-to)110-114
Number of pages5
JournalJournal of Crystal Growth
Volume352
Issue number1
DOIs
Publication statusPublished - 2012 Aug 1

Keywords

  • A1. Segregation
  • A2. Growth from melt
  • B1. Oxides
  • B2. Scintillator materials

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

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