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Atomic Engineering of Oxide Heterointerfaces

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Date and time Sep 18, 2008
from 04:00 PM to 05:00 PM
Location McLennan Physics (MP) 102
Host John Wei

Harold Y Hwang

Coll18th.jpgA central goal of materials physics and nanoscience is control of materials and their interfaces to atomic dimensions. Recent progress in materials/interface physics has revealed that, when assembled with atomic precision, the interface between two different classes of transition metal oxides can lead to new kinds of electronic phases at the interface. This opens a new avenue for synthesizing novel interface materials with atomic precision. At the interface between two insulators, for example, metallic, superconducting, and magnetic states can be induced. The implication may even be more significant when the electron-electron interaction is strong in the corresponding bulk materials; the resulting interface phase in this case has been a central issue of recent experimental and theoretical works. These examples present a general approach to creating novel low-dimensional states inaccessible in bulk materials.

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