Mechanical relaxation in SrBi2Ta2O9 ceramics
- 10 May 1999
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 74 (19) , 2794-2796
- https://doi.org/10.1063/1.124016
Abstract
The internal friction (IF) of SrBi2Ta2O9 ceramics was measured by using the reed vibration method in the temperature range from 100 to 600 K with frequency in kilohertz. A high IF peak appeared around 500 K, which was interpreted in terms of the migration of oxygen vacancies. Another low IF peak was found with a peak temperature of 200–250 K, which varied for tens of degrees in different samples. This peak was assumed to be due to the depinning process of domain walls from oxygen vacancies. These results are helpful in the understanding of the excellent fatigue resistance property of SBT at room temperature.This publication has 17 references indexed in Scilit:
- Fatigue characteristics of SrBi2Ta2O9 thin films prepared by metalorganic decompositionApplied Physics Letters, 1998
- Model experiments on fatigue of Pb(Zr0.53Ti0.47)O3 ferroelectric thin filmsApplied Physics Letters, 1998
- Variational layer expansion for kinetic processesPhysical Review E, 1997
- Grain-size effect on elastic properties offilms and their relationship to the order-disorder phase transitionPhysical Review B, 1997
- Electrical properties of SrBi2Ta2O9 thin films and their temperature dependence for ferroelectric nonvolatile memory applicationsApplied Physics Letters, 1996
- Qualitative model for the fatigue-free behavior of SrBi2Ta2O9Applied Physics Letters, 1996
- Grain-size effects in ferroelectric switchingPhysical Review B, 1990
- Ferroelectric MemoriesScience, 1989
- Oxygen diffusion in the superconducting oxidePhysical Review B, 1989
- Internal Friction Associated with the Domain Walls and the Second-Order Ferroelastic Transition in LNPPPhysica Status Solidi (a), 1987