Date and Time
Location
Title: Visualizing and optimizing materials pathways
Abstract
A central goal in materials research is to develop means for visualizing and inducing new phases of matter with unique functionalities. This requires efforts to manipulate and dynamically engineer the pathways materials follow on a complex energy landscape, and to visualize the heterogeneous dynamics that often accompanies these processes. In this talk I will focus on two recent efforts which illustrate these approaches: (1) I will describe new techniques for visualizing the induction of new phases and their dynamic heterogeneity using single-shot coherent x-ray scattering techniques. We show that this approach defines a new way of selectively visualizing dynamics occurring at nanoscale domain walls and their stochastic response, processes invisible to standard x-ray crystallographic approaches. 2) I will discuss efforts seeking to develop new calorimetric approaches for probing and minimizing dissipation in non-equilibrium, operating devices under time-dependent fields, a problem of both fundamental and technological relevance for energy-efficient computing and devices. I will also discuss an outlook for future x-ray and electron scattering approaches focused on such challenges.
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