PmC6. Giant electrostriction of ferroelectrics with diffuse phase transition - physics and applications

Abstract

Giant Electrostriction (GE) of disordered ferroelectrics such as Ferroelectrics with Diffuse Phase Transition (FDPT) is noteworthy for application and basic researches. We present experimental data on the electrostrictive strain in FDPT. The description of the peculiarities of the electrostrictive strain is given. Some possible applications of the materials with GE are reviewed.

Structural and dielectric studies of BaFe0.5Nb0.5O3

“…It is currently of interest as a component in commercial electroceramic materials, particularly as it is typically characterized by high relative permittivities and low sintering temperatures. Although the structural, dielectric and many other properties of PFN (Ivanov et al (2000), Lampis et al (1999), Bonny et al (1997), Schmid (1994), Bokov et al (1993), Yokosuka (1993), Lemanov et al (1992), Rayevsky et al (1992), Darlington (1991), Ueda (1989a, 1989b), Mabud (1984) and references therein) have been extensively examined, no attempt has been made to study the similar system BaFe 0.5 Nb 0.5 O 3 (BFN) to our knowledge. In the present work, a dielectric study of BFN ceramic prepared by the solid-state reaction technique is presented for the first time.…”

Echtzeit-Untersuchungen der ferroelektrischen Phasenumwandlungen in K2SeO4 und SrTiO3 unter dem Einfluss eines elektrischen Feldes

“…Relaxor-Ferroelektrika, mit denen die Eigenschaften von Strontium-Titanat in Verbindung gebracht werden, weisen ebenfalls eine große Elektrostriktion auf. [225].…”

Ferroelasticity of SrCo0.8Fe0.2O3–δperovskite-related oxide with mixed ion–electron conductivity

“…It is known that domainization of ferroelastic materials can have a significant effect on their physical properties (Bokov & Ye, 2006). For example, some materials with perovskiterelated structure with ferroelastic domains demonstrate anomalously high piezoelectric coefficients and dielectric permittivity (Park & Shrout, 1997;Lemanov et al, 1992). It was demonstrated for the high-temperature superconductor YBa 2 Cu 3 O 7À that ferroelastic nanodomains have a strong effect on the electrical transport and magnetic properties (Jung, 2001).…”