Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9784057 | Materials Science and Engineering: B | 2005 | 6 Pages |
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 â¼350 °C, less than the Curie temperature reported so far (â¼530 °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.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Yoshihiro Takahashi, Kenji Kitamura, Yasuhiko Benino, Takumi Fujiwara, Takayuki Komatsu,