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Nanoscale Epitaxial Films of Cu 2 O 2-x - An attempt to make cubic CuO - Motivation Explore structural and physical properties of a most fundamental cuprate.

Published byRebecca Donnelly Modified over 11 years ago

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Presentation on theme: "Nanoscale Epitaxial Films of Cu 2 O 2-x - An attempt to make cubic CuO - Motivation Explore structural and physical properties of a most fundamental cuprate."— Presentation transcript:

1 Nanoscale Epitaxial Films of Cu 2 O 2-x - An attempt to make cubic CuO - Motivation Explore structural and physical properties of a most fundamental cuprate structure, including effects of doping Explore general methodology for epitaxial stabilization of otherwise non-equilibrium crystal structures Cast Stanford: Wolter Siemons, Gertjan Koster, Hideki Yamamoto, Bob Hammond, Ted Geballe, Paul Grant and Malcolm Beasley Twente: Guus Rijnders and Dave Blank Support: EPRI, DOE and NanoNed

2 Cloning CuO on fcc Proxy Substrates CuO (tenorite) has a low-symmetry monoclinic with short bond lengths Can it be epi-grown on an fcc substrate (MgO, NiO, STO, SRO) in cubic or tetragonal form (possibly via IBAD)? DFT geometry optimization calculations indicate possibility cubic phases can exist quasistaticaly But not as stable as tenorite!

3 It Works!

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