Elastic response of (1-x)Ba(Ti0.8Zr0.2)O-3 - x(Ba0.7Ca0.3)TiO3 (x=0.45-0.55) and the role of the intermediate orthorhombic phase in enhancing the piezoelectric coupling
- Author(s)
- F. Cordero, F. Craciun, M. Dinescu, N. Scarisoreanu, C. Galassi, W. Schranz, V. Soprunyuk
- Abstract
The elastic response of (Ba,Ca)(Ti, Zr)O-3 at compositions where the piezoelectric effect is maximized has been measured by different methods between 1 Hz and 250 kHz and compared with that of PZT at the middle of its morphotropic phase boundary. In all cases, the compliance is peaked at the border between the tetragonal (T) and the orthorhombic (O) phases, intermediate between the T and the low- temperature rhombohedral phase. The anomalies do not exhibit dependence on frequency and their relative amplitude is 200- 300 times larger than the losses, demonstrating that they are intrinsic rather than due to the domain wall motion. This also demonstrates the role of an intermediate O or monoclinic phase in enhancing the transverse instability and piezoelectric coupling at a (morphotropic) phase boundary between R and T phases.
- Organisation(s)
- Physics of Functional Materials
- External organisation(s)
- Università degli Studi di Roma "Tor Vergata", National Institute for Laser, Plasma and Radiation Physics, Institute of Genetics and Biophysics "Adriano Buzzati-Traverso", CNR
- Journal
- Applied Physics Letters
- Volume
- 105
- No. of pages
- 5
- ISSN
- 0003-6951
- DOI
- https://doi.org/10.1063/1.4903807
- Publication date
- 12-2014
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103018 Materials physics
- Keywords
- ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/elastic-response-of-1xbati08zr02o3--xba07ca03tio3-x045055-and-the-role-of-the-intermediate-orthorhombic-phase-in-enhancing-the-piezoelectric-coupling(1e0ce35a-fa57-4bc0-bc98-618b677745ff).html