Harold Hwang studies electronic phenomena in oxide materials and their interfaces. His Stanford publication record includes work on electronic reconstruction and emergent states at oxide interfaces, where local symmetry and charge distribution can differ from those of either bulk material.[ref]
https://profiles.stanford.edu/harold-hwang. Publication entry, Emergent phenomena at oxide interfaces, 2012
He also coauthored the indium tin oxide study of band nonparabolicity.[ref]
Quantification and impact of nonparabolicity of the conduction band of indium tin oxide on its plasmonic properties by Xiaoge Liu and others. published byline
The broader experimental idea is that an interface is a physical region with its own structure and boundary conditions. Measuring a conducting layer at a boundary therefore raises questions about charge location, thickness and the adjoining materials, rather than being fully described by averaging the two bulk conductivities. Local structural and electronic measurements can test those distinctions.
Portrait of Harold Hwang
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