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Structure of gold thin films grown on Ir(111)

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We investigated the structures of the Au islands grown on Ir(111) using scanning tunneling microscopy (STM). We found that the Au islands have dendritic, triangularly compact, and irregularly compact shapes depending on the underlying layer and sample temperature, and that the island density at 100 K is much higher than that at 300 K. We also found that the first Au layer reveals a layer growth mode and that the growth becomes a multilayer mode from the second layer. The relation between the Au structures and chemical reactivity is discussed.

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Authors and Affiliations

  1. Institute of Industrial Science, University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505, Japan

    Shohei Ogura & Katsuyuki Fukutani

  2. Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka, 560-0043, Japan

    Michio Okada

  3. PRESTO, Japan Science and Technology Agency, 4-1-8 Honcho Kawaguchi, Saitama, Japan

    Michio Okada

Authors
  1. Shohei Ogura
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  2. Katsuyuki Fukutani
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  3. Michio Okada
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Correspondence to Shohei Ogura.

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Ogura, S., Fukutani, K. & Okada, M. Structure of gold thin films grown on Ir(111). Top Catal 44, 65–71 (2007). https://doi.org/10.1007/s11244-007-0279-7

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