Heteroepitaxial growth of Pb(Mg1/3Ta2/3)O3 thin films on SrTiO3 substrates using chemical solution deposition method: microstructural evolution

✍ Scribed by Dae-Soo Jeong; Yeon-Ah Shim; Jong-Ha Moon; Byung-Teak Lee; Jin Hyeok Kim

• Book ID: 104305812
• Publisher: Elsevier Science
• Year: 2003
• Tongue: English
• Weight: 342 KB
• Volume: 66
• Category: Article
• ISSN: 0167-9317
• DOI: 10.1016/s0167-9317(02)00966-8

✦ Synopsis

Epitaxial Pb(Mg Ta )O (PMT) thin films were grown on (001) SrTiO (STO) substrates using a 1 / 3 2 / 3 3 3 chemical solution deposition method. Microstructural evolution as a function of annealing temperatures (600 | 900 8C / 1 h) has been studied using transmission electron microscopy, scanning electron microscopy, and four-circle X-ray diffractometry. A thin layer of epitaxial perovskite phase was formed first at the film / substrate interface in a sample annealed at 650 8C / 1 h and then it grew upward to the film surface by consuming the pyrochlore phase in the upper region of the film. No further microstructural evolution was observed in the sample annealed at above 750 8C / 1 h. An epitaxial orientation relationship of 100 uu100 was PMT STO found by selected area diffraction pattern.