The elastic and electromechanical properties of BaTiO{sub 3} single crystal through the ferroelectric transition
- Argonne National Lab., IL (United States). Materials Science Div.
Using Brillouin scattering and impedance methods, the elastic, piezoelectric and dielectric properties have been determined for mono-domain single crystal BaTiO{sub 3} from 23 C to 160 C. In the cubic phase (T > 130 C) only the compressional elastic constant C{sub 11} exhibits partial softening of about 6% upon cooling. During the tetragonal to cubic phase transition, most elastic constants show discontinuous changes: either stiffening or softening. These and other results are discussed in terms of precursive effects through the electromechanical interaction of the ferroelectric phase transformation.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 147911
- Journal Information:
- Ferroelectrics, Journal Name: Ferroelectrics Vol. 159; ISSN 0015-0193; ISSN FEROA8
- Country of Publication:
- United States
- Language:
- English
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