Patterning of ferroelectric β′-Gd2(MoO 4)3 crystal lines on the glass surface by transition metal atom heat processing

Ryo Nakajima, Tsuyoshi Honma, Yasuhiko Benino, Takayuki Komatsu

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Lines consisting of ferroelectric β′-Gd2(MoO 4)3 crystals are patterned on the surface of NiO (2 mol%)-doped 21.25Gd2O3·63.75MoO3· 15B2O3 glass by continuous wave (cw) Nd: YAG laser irradiations with a wavelength of λ = 1064 nm, where laser energies absorbed by Ni2+ ions are converted to the local heating of surrounding Ni2+ ions. The surface morphology of crystals in the patterned lines is clarified from confocal scanning laser microscope observations. β′-Gd2(MoO4)3 crystal lines patterned by laser irradiations with a power of 0.73 W and a scanning speed of 2.5 μm/s show a smooth surface with a bump (width: 9 μm, height: 3 μm), and it is suggested from polarized micro-Raman scattering spectra that β′ -Gd2(MoO4) 3 crystals might orient along the laser scanning direction. The present study demonstrates that the transition metal atom heat processing, i.e., a combination of cw Nd:YAG laser and Ni2+ ions, is a novel technique for spatially selected crystallization in rare-earth containing glasses.

Original languageEnglish
Pages (from-to)582-587
Number of pages6
JournalNippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
Volume115
Issue number1346
Publication statusPublished - Oct 2007

Fingerprint

Ferroelectric materials
Transition metals
transition metals
Glass
heat
Atoms
Crystals
Lasers
glass
continuous wave lasers
Laser beam effects
Ions
Processing
Scanning
crystals
lasers
scanning
atoms
YAG lasers
ions

Keywords

  • Crystal line
  • Laser-induced crystallization
  • Micro-Raman scattering spectrum
  • Rare-earth molybdate
  • Surface morphology

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

Patterning of ferroelectric β′-Gd2(MoO 4)3 crystal lines on the glass surface by transition metal atom heat processing. / Nakajima, Ryo; Honma, Tsuyoshi; Benino, Yasuhiko; Komatsu, Takayuki.

In: Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan, Vol. 115, No. 1346, 10.2007, p. 582-587.

Research output: Contribution to journalArticle

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