Nucleation of the ferroelectric phase in the (PbxSr1−x)TiO3 system

✍ Scribed by S. Subrahmanyam; E. Goo

• Book ID: 104403476
• Publisher: Elsevier Science
• Year: 1998
• Tongue: English
• Weight: 319 KB
• Volume: 46
• Category: Article
• ISSN: 1359-6454
• DOI: 10.1016/s1359-6454(97)00313-3

✦ Synopsis

AbstractÐThe diuseness of the ferroelectric phase transition depends on the size of the ferroelectric nuclei and therefore, by using a power law model, the size of the ferroelectric nuclei was determined to be between 40 and 60 A Ê . Diuse phase transitions were observed in the (Pb x Sr 1 À x )TiO 3 system upon transforming from the cubic paraelectric phase to the tetragonal ferroelectric phase. The diuseness of the phase transition was quanti®ed by measuring the dielectric constant as a function of temperature. Using these curves of dielectric constant vs temperature a semi-empirical method was used to determine the diuseness coecient, d.