Growth and Morphology of Nd3+, Er3+ and Cr3+ doped YAl3(BO3)4 Single Crystals

E. Beregi, E. Hartmann, L. Malicskó, J. Madarász

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

Nd3+ , Er3+ and Cr3+ doped large single crystals of YAl3(BO3)4 were grown by spontaneous crystallisation and by top-seeded solution growth (TSSG) from a K2Mo3O10 and B2O3 flux. The crystals were grown in orientation with cooling rate 2.4°C/day. The small crystals grown by spontaneous nucleation usually had simple needle shape, while the large crystals grown by TSSG method had either isometrical habit or tabular one. The results suggest that the extremely large pinacoid faces appearing in the case of YAB:Cr3+ growth are due to a high temperature gradient in the flux, and evaporation of the solution. The lattice structure of crystals checked by powder X-ray diffraction is isomorphous to YAB with space group R32. The dependence of crystal habits and growth conditions is discussed.

Original languageEnglish
Pages (from-to)641-645
Number of pages5
JournalCrystal Research and Technology
Volume34
Issue number5
Publication statusPublished - 1999

Fingerprint

Single crystals
Crystals
single crystals
Crystallization
crystals
habits
Fluxes
Crystal lattices
Crystal orientation
Needles
Thermal gradients
X ray powder diffraction
Evaporation
Nucleation
needles
Cooling
temperature gradients
evaporation
nucleation
crystallization

Keywords

  • Growth
  • Lattice parameters
  • Morphology
  • NYAB
  • Top-seeded solution gowth
  • Yttrium-aluminium borate

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Growth and Morphology of Nd3+, Er3+ and Cr3+ doped YAl3(BO3)4 Single Crystals. / Beregi, E.; Hartmann, E.; Malicskó, L.; Madarász, J.

In: Crystal Research and Technology, Vol. 34, No. 5, 1999, p. 641-645.

Research output: Contribution to journalArticle

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AU - Hartmann, E.

AU - Malicskó, L.

AU - Madarász, J.

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N2 - Nd3+ , Er3+ and Cr3+ doped large single crystals of YAl3(BO3)4 were grown by spontaneous crystallisation and by top-seeded solution growth (TSSG) from a K2Mo3O10 and B2O3 flux. The crystals were grown in orientation with cooling rate 2.4°C/day. The small crystals grown by spontaneous nucleation usually had simple needle shape, while the large crystals grown by TSSG method had either isometrical habit or tabular one. The results suggest that the extremely large pinacoid faces appearing in the case of YAB:Cr3+ growth are due to a high temperature gradient in the flux, and evaporation of the solution. The lattice structure of crystals checked by powder X-ray diffraction is isomorphous to YAB with space group R32. The dependence of crystal habits and growth conditions is discussed.

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