The Mesoscale Materials Lab explores how symmetry-breaking and structure drive the flow of energy in solids, including the interaction of light with matter. Welcome to our site.
It is well known how the properties of a solid arise from its symmetry, whether this is defined within the bulk interior, or by the presence of a surface or interface. We study how symmetry-breaking at different length scales alters how light and other electromagnetic radiation interacts and propagates in ferroelectric and related materials.
The domain-wall structure and dynamics are found to enhance, rather than inhibit, the high-frequency performance of an intrinsically tunable material, obtaining ultra-low loss and exceptional frequency selectivity. Illustration credit: Felice Macera. Relevant publication
Ballistic photoconduction and a mesoscopic electron free path can be attained at room temperature in a ferroelectric insulator.
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Nanoscale electrodes and the bulk photovoltaic effect together permit high quantum yield.
Relevant Publication
Solid phase epitaxy of ferroelectric perovskite oxide films can occur from amorphous films produced by atomic layer deposition at temperatures much lower than the usual bulk crystallization temperatures.
Relevant Publication
Chemisorption and desorption of water fragments permits reversible quantum well ultraviolet luminescence. Relevant publication
We celebrate the successful defense of Andrew Bennett-Jackson on June 15, 2022. ABJ has now joined the Applied Physics Lab at Johns Hopkins University as a postdoctoral scientist. ABJ was
Alexsandr Plokhikh has accepted a position with Lam Research Corporation in Fremont, CA, after successfully defending his PhD dissertation. Founded in 1980, Lam partners with researchers and companies
The drift- and diffusion-governing behaviors of photo-generated oppositely-charged carriers near surfaces of and interfaces within semiconducting and insulating solids are ubiquitous in nature, and th