Abstract
The glasses with the compositions of 21.25RE2O3-63.75MoO3-15B2O3 (RE: Sm, Gd, Dy) were prepared and the formation of β′-RE2(MoO4)3 ferroelectrics was confirmed in the crystallized glasses obtained through a conventional crystallization in an electric furnace. The features of the glass structure and crystallization behavior were clarified from measurements of Raman scattering spectra. Continuous-wave Nd:YAG laser with a wavelength of 1064 nm (laser power: 0.6-0.9 W, laser scanning speed: S = 1-16 μm/s) was irradiated to 10.625Sm2O3-10.625Gd2O3 (or Dy2O3)-63.75MoO3-15B2O3 glasses, and the structural modification was induced at the glass surface. At the scanning speed of S = 10 μm/s, crystal lines consisting of β′-Gd2-xSmx(MoO4)3 or β′-Dy2-xSmx(MoO4)3 crystals were patterned on the glass surface. It was found that those crystal lines have the surface morphology with periodic bumps. At S = 1 μm/s, it was found that crystal lines consist of the mixture of paraelectric α-Gd2-xSmx(MoO4)3 and ferroelectric β′-Gd2-xSmx(MoO4)3 crystals, indicating the phase transformation from the β′ phase to the α phase during laser irradiation. Homogeneous crystal lines with β′-RE2(MoO4)3 ferroelectrics have not been written in this study, but further research is continuing.
Original language | English |
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Pages (from-to) | 85-93 |
Number of pages | 9 |
Journal | Journal of Non-Crystalline Solids |
Volume | 353 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2007 Jan 1 |
Keywords
- Crystal growth
- Crystallization
- Non-linear optics
- Optical microscopy
- Optical properties
- Radiation
- Raman scattering
- Raman spectroscopy
- Rare-earths in glasses
- X-ray diffraction
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Ceramics and Composites
- Condensed Matter Physics
- Materials Chemistry