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Self-organized formation of quasi-one-dimensional surface oxide domains on Cu(110) leads to a one-dimensional confinement of a Shockley surface state. High-resolution angle-resolved photoemission spectra show the appearance of singularities in the density of states expected for the critical points of quasi-one-dimensional subbands. At higher oxygen coverages disorder decouples the individual domains (Anderson localization) and a pronounced quantum size shift of the resulting quantum well states is observed.

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Authors: BERTEL E, Max-Planck-Institut für Plasmaphysik, Garching bei München (DE);LEHMANN J, Max-Planck-Institut für Plasmaphysik, Garching bei München (DE)
Bibliographic Reference: Article: Physical Review Letters, Vol. 80 (1998) No. 7, pp. 1497-1500
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