Scanning-Tunneling Microscopy, Near-Edge X-ray-Absorption Fine Structure, and Density-Functional Theory Studies of N2O Orientation on Pd(110)
Scanning-Tunneling Microscopy, Near-Edge X-ray-Absorption Fine Structure, and Density-Functional Theory Studies of N2O Orientation on Pd(110)
复制标题
DOI：
10.1143/jjap.45.2290
复制
发表时间：
2006-03
影响因子：
1.5
通讯作者：
Kazuo Watanabe;A. Kokalj;H. Horino;I. Rzeznicka;Kazutoshi Takahashi;N. Nishi;T. Matsushima
中科院分区：
文献类型：
--
作者：
Kazuo Watanabe;A. Kokalj;H. Horino;I. Rzeznicka;Kazutoshi Takahashi;N. Nishi;T. Matsushima
用扫描隧道显微镜、近边X射线吸收精细结构（NEXAFS）和密度泛函理论研究了N2O在Pd（110）表面的吸附取向。在14 K以下，N2O（a）形成沿[110]方向沿着延伸的团簇以及沿[001]方向沿着取向的单体。在团簇中，N2O是倾斜的，末端氮键合到表面。簇合物在14 K下是移动的，在8 K下是稳定的，而单体在14 K下是稳定的.在60 K下的NEXAFS工作中，发现π共振的偏振依赖性具有显著的各向异性，这与倾斜和[001]取向形式的混合相一致。
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 [1 10] 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.