Influence of defect mobility on electrostrain in acceptor-doped Ba0.80Sr0.20TiO3

Influence of defect mobility on electrostrain in acceptor-doped Ba0.80Sr0.20TiO3

This study reports significant differences in the defect-mediated electrostrain in B-site trivalent ions (Fe3+ and Mn3+) doped Barium titanate based system. Electron Paramagnetic Resonance (EPR) Spectroscopy has been employed as a structural probe for understanding the symmetry of defects. Differenc...

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Veröffentlicht in:AIP advances 2012-12, Vol.2 (4), p.042177-042177-4
Hauptverfasser: Vani, K., Kumar, Viswanathan
Format: Artikel
Sprache:eng
Schlagworte:
Barium titanates
Correlation
Defects
Electron paramagnetic resonance
Manganese
Strain
Symmetry
Trivalent ions
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Zusammenfassung:This study reports significant differences in the defect-mediated electrostrain in B-site trivalent ions (Fe3+ and Mn3+) doped Barium titanate based system. Electron Paramagnetic Resonance (EPR) Spectroscopy has been employed as a structural probe for understanding the symmetry of defects. Differences in the reorientation of the defect dipoles have been correlated with the electrostrain. Mechanism for the higher strain in Mn-doped system has also been explained.
ISSN:2158-3226
2158-3226
DOI:10.1063/1.4770325