Quantitative determination of domain distribution in SrTiO3-competing effects of applied electric field and mechanical stress
2010 | journal article. A publication with affiliation to the University of Göttingen.
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Quantitative determination of domain distribution in SrTiO3-competing effects of applied electric field and mechanical stress
Sidoruk, J.; Leist, J.; Gibhardt, H.; Meven, M.; Hradi, K. & Eckold, G. (2010)
Journal of Physics Condensed Matter, 22(23) art. 235903. DOI: https://doi.org/10.1088/0953-8984/22/23/235903
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Details
- Authors
- Sidoruk, Jakob; Leist, Jeannis; Gibhardt, Holger; Meven, M.; Hradi, K.; Eckold, Goetz
- Abstract
- Below its ordering temperature at 105 K, perovskite-type SrTiO3 exhibits a tetragonal phase with three different structural domains that are strongly influenced by the application of uniaxial mechanical stresses and electric fields. A careful neutron diffraction study of superlattice reflections provides full quantitative information about the varying domain distributions under external loads as a function of temperature. It is shown that electric field and uniaxial stress exhibit competitive effects and the simultaneous application leads to a complex redistribution behaviour of the tetragonal domains. The results are discussed in the context of the formation of a field induced ferroelectric phase at low temperatures. The experimental findings demonstrate that its polarization is always perpendicular to the tetragonal axis and the polar phase has orthorhombic symmetry.
- Issue Date
- 2010
- Status
- published
- Publisher
- Iop Publishing Ltd
- Journal
- Journal of Physics Condensed Matter
- ISSN
- 0953-8984