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Title: Oxide Surfaces

While we understand relatively well the structure of metal surfaces and semiconductors, in many other cases (particularly for oxides) we do not yet. Part of the problem is experimental, part theoretimore »cal; DFT can be quite unreliable for oxides, particularly strongly correllated transition metal system. As a consequence, it is still hard to guess a plausible structure for an oxide surface. Direct methods developed originally for bulk materials avoids the need to guess. We have been able to apply them to both surface transmission electron and x-ray diffraction data, determining some unexpected oxide structures that one would not guess. From these results it is now starting to become clear that the rules controlling oxide surfaces are not physics or materials science but inorganic polyhedral co-ordination chemistry. This presentation will give an overview of some recent results on oxide surfaces. Peering into the crystal ball, Professor Marks will mention some recent work refining charge density at surfaces, and the potential for doing this routinely with brighter sources.« less
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Title: Oxide Surfaces
Authors:
Publication Date: 2009-04-08
OSTI Identifier: 1122585
DOE Contract Number: ACO2-06CH11357
Resource Type: Multimedia
Resource Relation: Conference: APS Colloquium Series, Advanced Photon Source (APS) at Argonne National Laboratory, Argonne, Illinois (United States), presented on April 08, 2009
Research Org: ANL (Argonne National Laboratory (ANL), Argonne, IL (United States)); Advanced Photon Source (APS)
Sponsoring Org: USDOE Office of Science (SC)
Subject: 36 MATERIALS SCIENCE ; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Country of Publication: United States
Language: English
Run Time: 0:43:28
System Entry Date: 2016-01-28