Title page for ETD etd-12172003-135750

Type of Document Master's Thesis
Author Jullian, Christelle Francoise
Author's Email Address cjullian@vt.edu
URN etd-12172003-135750
Title Investigation of polarization switching over broad time and field domains in various ferroelectrics
Degree Master of Science
Department Materials Science and Engineering
Advisory Committee
Advisor Name Title
Viehland, Dwight D. Committee Chair
Dowling, Norman E. Committee Member
Li, Jie-Fang Committee Member
  • relaxation time
  • switching mechanisms
  • ferroelectrics
  • Polarization switching
  • domain dynamics
  • nucleation
Date of Defense 2003-12-10
Availability unrestricted
Investigations of polarization switching over broad time and electric field domains, in various modified Pb-based perovskite ferroelectrics, were systematically performed by ferroelectric switching current transient and bipolar drive P-E responses. Studies were performed from E«Ec to E»Ec, where Ec is the coercive field These investigations have shown the presence of broad relaxation time distributions for the switching process, which can extend over several decades in order of magnitude in time, and where the distribution is strongly dependent on the applied electric field.

By performing the study of domain dynamics and polarization switching over extremely broad time domains (10-8

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