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SUMMARY:On the origin of 2D electron gases in oxide heterostructures and s
 imilar systems: the physics and the chemistry of it - Emilio Artacho (CIC 
 nanoGUNE Consolider and Cavendish Laboratory)
DTSTART:20121107T141500Z
DTEND:20121107T151500Z
UID:TALK40551@talks.cam.ac.uk
CONTACT:Aron Cohen
DESCRIPTION:\nThe appearance in 2004 of a two-dimensional electron gas bur
 ied at the interface between a strontium titanate substrate and a nanoscal
 e film of lanthanum aluminate has given rise to quite an active research l
 ine at the frontier between physics (interesting properties of the gas\, a
 s coexisting magnetism and superconductivity)\, materials science (these g
 ases can be connected to perovskites of very varied behaviours) and chemis
 try (the properties of these systems depend very sensitively on solid-stat
 e chemistry\, e.g. oxygen vacancy concentrations in the materials). In thi
 s talk I will concentrate on the origin of the electron gas and\, in parti
 cular\, the connection of redox processes on the surface to the physics of
  the gas buried at the interface at the other side of the film.
LOCATION:Department of Chemistry\, Cambridge\, Pfizer lecture theatre
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