Explosive crystallization of PZT microstructures by femtosecond infrared radiation

[摘要] The features of microstructure crystallization into perovskite phase in lead zirconate titanate film by femtosecond laser radiation of near-infrared range were discussed. In-situ crystallization kinetics by method of second harmonic generation (SHG) was studied. The presence of several types of crystallization was shown, including ultra-fast (explosive) crystallization occurring immediately after the start of exposure, and slow (self-sustaining) crystallization, occurring after termination of exposure. The advantage of the second-harmonic generation microscopy for the study of annealed microstructures was shown. The morphology of microstructures was investigated by transmission electron microscopy (TEM).

[发布机构] Moscow State Technical University of Radio Engineering, Electronics and Automation, Vernadskogo av. 78, Moscow; 119454, Russia^1;Lomonosov Moscow State University, Leninskie Gory st., 1, Moscow; 119991, Russia^2;Ioffe Physical-Technical Institute of the RAS, Politechnicheskaya st. 26, Saint-Petersburg; 194021, Russia^3;Shubnikov Institute of Crystallography of the RAS, Leninsky av. 59, Moscow; 119333, Russia^4

[效力级别] 天文学 [学科分类] 天文学(综合)

[关键词] Explosive crystallizations;Femtoseconds;Lead-zirconate-titanate films;Near-infrared range;Perovskite phase;Second harmonic generation microscopies (SHG);Ultra-fast