Abstract
Flower-shaped crystals with diameters of 100-200 μm consisting of LaBGeO5 (LBGO) single crystals similar to petals were observed in the interior of transparent LBGO surface-crystallized glasses. Each flower-shaped crystal was radially grown from the surface of the included bubbles. A more intense second-harmonic generation was observed from the LBGO crystallized glasses with the flower-shaped LBGO single crystals compared to the samples without such crystals based on the Maker fringe technique and second-harmonic (SH) generation microscopy. The SH intensity for the flower-shaped LBGO single crystals monotonically decreased with increasing temperature up to ∼350°C, less than the Curie temperature reported so far (∼530°C). It is considered that the internal compressive stress induced by the difference in the thermal expansion between the LBGO single crystal and the corresponding glass affect the ferroelectric property of the flower-shaped LBGO single crystals in glass.
Original language | English |
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Pages (from-to) | 155-160 |
Number of pages | 6 |
Journal | Materials Science and Engineering B: Solid-State Materials for Advanced Technology |
Volume | 120 |
Issue number | 1-3 |
DOIs | |
Publication status | Published - Jul 15 2005 |
Externally published | Yes |
Keywords
- Crystallization
- Glass
- LaBGeO
- Nonlinear optical crystal
- Second-harmonic generation
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering