Regensburg 2013 – scientific programme
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O: Fachverband Oberflächenphysik
O 58: Poster Session III (Solid-liquid interfaces; Scanning probe and other methods; Electronic structure theory; Spin-orbit interaction)
O 58.35: Poster
Wednesday, March 13, 2013, 18:15–21:45, Poster B1
Ordering in two dimensional amorphous atomic sheet — Takahiro Suzuki1,2, Kiyoshi Koyanagi1, Yasumasa Tanishiro1,2, and •Kunio Takayanagi1,2 — 1Tokyo Institute of Tecnology — 2Crest, JST
Amorphous film is an issue of nano-surface science, because the local ordering of atoms/ions determines electronic properties. We used an aberration corrected electron microscopy (AbC-EM) to find a local order/disorder of atoms/ions in amorphous thin films. An amorphous carbon mono-sheet is found to have a specific "local ordering" in the atomic sheet. Local order of metal ions in an amorphous InGaZnO film, a transparent amorphous oxide semiconductor (TAOS), is found to be seen also by AbC-EM. The electron transport via overlapping between neighboring metal s-orbitals in TAOS is discussed in terms of the local ordering.