Scanning-tunneling microscopy, near-edge X-ray-absorption fine structure, and density-functional theory studies of N2O orientation on Pd(110)

Kazuo Watanabe, Anton Kokalj, Hideyuki Horino, Izabela I. Rzeznicka, Kazutoshi Takahashi, Nobuyuki Nishi, Tatsuo Matsushima

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19 Citations (Scopus)

Abstract

The orientation of adsorbed N2O on Pd(110) was studied by scanning tunneling microscopy, near-edge X-ray absorption fine structure (NEXAFS), and density functional theory. Below 14 K, N2O(a) forms clusters extending along the [11̄0] direction as well as monomers oriented along the [001] direction. In the clusters, N2O is tilted with the terminal nitrogen bonding to the surface. The clusters are mobile at 14 K and stable at 8 K, whereas the monomers are stable at 14 K. In NEXAFS work at 60 K, remarkable anisotropy was found in the polarization dependence of π resonance, which was consistent with a mixture of the tilted and [001]-oriented forms.

Original languageEnglish
Pages (from-to)2290-2294
Number of pages5
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume45
Issue number3 B
DOIs
Publication statusPublished - 2006 Mar 27

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Keywords

  • DFT-GGA
  • NEXAFS
  • Nitrous oxide
  • Palladium
  • STM

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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