Phase-field simulation of defect transport, current evolution and piezoelectric response in dielectric and ferroelectric oxides
- Restrictions on Access:
- Open Access.
- In this study, we used the phase-field model to study the defect transport, resistance degradation behavior, current-voltage characteristics and piezoelectric responses in a number of representative dielectric and ferroelectric oxides including SrTiO3, BaTiO3, and Pb(Zr1-xTix)O3. The effects of electric field strength, domain orientations, domain structures as well as grain boundaries on the distribution and evolution of ionic/electronic space charges and leakage currents were systematically investigated. We developed the electrochemical transport model to study the ionic/electronic space charge profiles and local electric potential distribution at equilibrium state and their evolutions under applied biases in a sandwiched Ni aTiO3
- Dissertation Note:
- Ph.D. Pennsylvania State University 2014.
- Reproduction Note:
- Microfilm (positive). 1 reel ; 35 mm. (University Microfilms 36-90108)
- Technical Details:
- The full text of the dissertation is available as an Adobe Acrobat .pdf file ; Adobe Acrobat Reader required to view the file.
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