Low-dimensional NbO structures on the Nb(110) surface: scanning tunneling microscopy, electron spectroscopy and diffraction

A. S. Razinkin; E. V. Shalaeva; M. V. Kuznetsov

Low-dimensional NbO structures on the Nb(110) surface: scanning tunneling microscopy, electron spectroscopy and diffraction

Materials Science 2008-11-11 v1

Authors: A. S. Razinkin , E. V. Shalaeva , M. V. Kuznetsov

Abstract

X-ray photoelectron spectroscopy and diffraction (XPS, XPD) and scanning tunneling microscopy (STM) have been used for study of NbOx-structures on the Nb(110) surface. It is shown that niobium atoms are ordered to form a two-dimensional superstructure with equidistant spacing between the chains of niobium atoms. Chemical shifts of Nb3d- and O1s-levels demonstrate that the oxide layer corresponds to niobium monoxide NbO and the most part of oxygen in chemisorbed state is localized on the surface. A model of quasi-ordered structure of NbO on the Nb(110) surface is proposed.

Keywords

surface science superconducting radio frequency cavities nanoparticles

Cite

@article{arxiv.0811.1424,
  title  = {Low-dimensional NbO structures on the Nb(110) surface: scanning tunneling microscopy, electron spectroscopy and diffraction},
  author = {A. S. Razinkin and E. V. Shalaeva and M. V. Kuznetsov},
  journal= {arXiv preprint arXiv:0811.1424},
  year   = {2008}
}

Comments

7 pages, 4 figures

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