Size effect in isometric PbTiO3 crystals |
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| Authors: | V. G. Gavrilyachenko V. D. Komarov E. G. Fesenko A. V. Leiderman |
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| Affiliation: | (1) Rostov State University, 344090 Rostov-on-the-Don, Russia;(2) Scientific-Research Institute of Physics Rostov State University, 344090 Rostov-on-the-Don, Russia;(3) Physics Department, University of Puerto Rico at Mayagüez, Mayagüez, Puerto Rico, 00680, US |
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| Abstract: | The phase transitions Pm3m⇄P4mm and domain-structure formation in 5–500 μm isometric PbTiO3 crystals were investigated. The phase transition is characterized by a high rate and by the formation of a single flat interphase boundary {023}. A size effect was observed: In crystals smaller than a critical size (about 20 μm), formation of 90° domains stops and, in agreement with a phenomenological theory, the temperature hysteresis of the phase transition doubles. Fiz. Tverd. Tela (St. Petersburg) 40, 1546–1547 (August 1998) |
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