Ryan Keech
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Thickness‐dependent domain wall reorientation in 70/30 lead magnesium niobate‐ lead titanate thin films Open
Continued reduction in length scales associated with many ferroelectric film‐based technologies is contingent on retaining the functional properties as the film thickness is reduced. Epitaxial and polycrystalline lead magnesium niobate‐lea…
Declamped Piezoelectric Coefficients in Patterned 70/30 Lead Magnesium Niobate–Lead Titanate Thin Films Open
Lateral subdivision of blanket piezoelectric thin films increases the functional properties through both increased domain wall mobility and declamping of the intrinsic response. This work presents the local effects of substrate declamping …
Scaling Effects in Perovskite Ferroelectrics: Fundamental Limits and Process‐Structure‐Property Relations Open
Ferroelectric materials are well‐suited for a variety of applications because they can offer a combination of high performance and scaled integration. Examples of note include piezoelectrics to transform between electrical and mechanical e…
Management of Lead Content for Growth of {001}‐Oriented Lead Magnesium Niobate‐Lead Titanate Thin Films Open
A scalable growth process for domain engineered {001}‐oriented lead magnesium niobate—lead titanate (PMN‐PT) thin films with Lotgering factors of 0.98–1.0, without an orienting perovskite seed layer, is presented. Deposition of a 2–3‐nm‐th…