Influence of Annealing on Domain Structures of Bismuth-Titanate-Based Crystals |
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| Journal | Key Engineering Materials (Volume 320) |
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| Volume | Electroceramics in Japan IX |
| Edited by | Keiichi Katayama, Kazumi Kato, Tadashi Takenaka, Masasuke Takata and Kazuo Shinozaki |
| Pages | 27-30 |
| DOI | 10.4028/www.scientific.net/KEM.320.27 |
| Citation | Shinichi Katayama et al., 2006, Key Engineering Materials, 320, 27 |
| Online since | September, 2006 |
| Authors | Shinichi Katayama, Yuji Noguchi, Masaru Miyayama |
| Keywords | Bismuth Titanate, Domain Structure, Piezoresponse Force Microscopy, Rare Earth Substitution |
| Abstract | Influence of annealing on the domain structures of bismuth titanate (BiT) and rare-earth (La and Nd)-substituted BiT crystals (BLT or BNT) were investigated by optical microscope and piezoresponse force microscope (PFM). Annealing of BiT at 950°C in air significantly decreased the number of striped 90° domain walls, while charged 180° domain walls were still present in the crystals after the annealing. The annealing for the crystals of BLT and BNT at the same condition did not change their 90° domain structures. PFM observations indicated that antiphase domain boundaries in BLT play an important role in the formation of 90° domain structures. |
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