Argonne National Laboratory

Thematic Workshops, Tuesday, May 3, 2011

WKB. Emergent Interfacial Phenomena, Building 401, Rm E1100/1200
Organizers: Paul Fenter (APS, Argonne CSE), Olle Heinonen and Tiffany Santos (CNM, Argonne MSD & CNM), Robert Klie (EMC, Univ. of Illinois at Chicago)

Heterostructures in which different materials are layered together display a range of emergent phenomena, which can be controlled through effects such as geometric confinement and interface structure. These can lead to charge transfer and band structure modification and thus to the novel behavior that is observed. This workshop will focus on research aimed at obtaining a fundamental understanding of the role that microstructure, composition, chemistry and interfaces (including laterally-confining surfaces) play in controlling the emergent phenomena in heterostructures. The workshop will cover both experimental and theoretical studies, including the use of in situ and ex situ characterization and property measurement, and computer simulations. The fundamental studies presented in this workshop will provide insights that will guide the way in which these nanostructures can be used for advanced technologies, such as new generations of low energy consumption non-volatile memories. This addresses the DOE mission of advancing fundamental and applied science needed for the development of the new generation of renewable energy systems critical to the nation's future.

Agenda

8:50 - 9:00           Welcome

9:00 - 9:40           Charles Ahn, Yale University
                            Charge-based Magnetoelectric Coupling in Complex Oxide Interface Structures

9:40 - 10:20         Christian Binek, University of Nebraska
                            Robust Isothermal Electric Control of Exchange Bias at Room Temperature

10:20 - 10:40       Break

10:40 - 11:20       Mitra Taheri, Drexel University
                            Direct Observation of Ferroelectric Domain Switching Behavior in Oxides Using In Situ TEM

11:20 - 12:00       Suzanne Stemmer, UC-Santa Barbara
                            Novel Phenomena at Perovskite Interfaces

12:00 - 1:30         Lunch

1:30 - 2:30           Keynote Address:  Stan Williams, HP Labs
                           The Memristor:  A Solid-state Electronic/Ionic Device

2:30 - 3:10           James Rondinelli, Argonne XSD Division
                           
Ferroelectric oxide design: engineering polar perovskites from centric polyhedra building blocks

3:10 - 3:30           Break

3:30 - 4:10          Dillon Fong, Argonne MSD Division
                           In Situ Studies on the Effect of Oxygen Partial Pressure on Ferroelectric Thin Films

4:10 - 4:50          Sang Soo Lee, Argonne CSE Division
                           Resolving Cation Speciation at Charged Mineral – Solution Interfaces Using Resonant Anomalous X-ray                              Reflectivity


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