Abstract
We have probed the microscopic distribution of 180° domains as a function of switching history in 40 nm epitaxial films of Pb(Zr0.30Ti0.70)O3 by analyzing interference effects in the x-ray scattering profiles. These as-grown films exhibit voltage offsets (imprint) in the polarization hysteresis loops, coupled with a strongly preferred polarization direction in the virgin state. Our x-ray results are consistent with models attributing the loss of switchable polarization to the inhibition of the formation of oppositely polarized domains in a unipolar matrix. Using such model epitaxial films, we demonstrate that different microscopic ensembles of domains resulting from, for example, fatigue, may be resolved by this technique.
Original language | English |
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Pages (from-to) | 3511-3513 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 78 |
Issue number | 22 |
DOIs | |
State | Published - May 28 2001 |
Externally published | Yes |