This title appears in the Scientific Report :
2009
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevLett.102.117601 in citations.
Please use the identifier: http://hdl.handle.net/2128/7197 in citations.
Effect of a single dislocation in a heterostructure layer on the local polarization of a ferroelectric layer
Effect of a single dislocation in a heterostructure layer on the local polarization of a ferroelectric layer
We study, on an atomic scale, the influence of a single dislocation in a SrTiO3 sublayer on the local ferroelectric polarization of the neighboring ferroelectric PbZr0.2Ti0.8O3 (PZT) sublayer in an epitaxial SrTiO3/PbZr0.2Ti0.8O3/SrTiO3 three-layer heterostructure. The strain field of the dislocatio...
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Personal Name(s): | Jia, C.-L. |
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Mi, S.B. / Urban, K. / Vrejoiu, I. / Alexe, M. / Hesse, D. | |
Contributing Institute: |
Mikrostrukturforschung; IFF-8 JARA-FIT; JARA-FIT |
Published in: | Physical review letters, 102 (2009) S. 117601 |
Imprint: |
College Park, Md.
APS
2009
|
Physical Description: |
117601 |
DOI: |
10.1103/PhysRevLett.102.117601 |
Document Type: |
Journal Article |
Research Program: |
Grundlagen für zukünftige Informationstechnologien |
Series Title: |
Physical Review Letters
102 |
Subject (ZB): | |
Link: |
Get full text OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/7197 in citations.
We study, on an atomic scale, the influence of a single dislocation in a SrTiO3 sublayer on the local ferroelectric polarization of the neighboring ferroelectric PbZr0.2Ti0.8O3 (PZT) sublayer in an epitaxial SrTiO3/PbZr0.2Ti0.8O3/SrTiO3 three-layer heterostructure. The strain field of the dislocation in the SrTiO3 layer propagates across the interface into the PZT layer and leads to a strong variation of the c-lattice parameter of the PZT layer. Accompanying a strong reduction of the c-lattice parameter, the off-center displacements of the Zr/Ti atoms away from the center of the oxygen octahedra are also strongly decreased, resulting in a decrease of the local spontaneous polarization by up to 48%. |