Electron Scattering Study of Clean (100) Tungsten and Its Interaction with Oxygen at Low Coverage.
Abstract
A unique and versatile electrostatic spectrometer has been designed and constructed to perform, on a single specimen in a single ultrahigh vacuum chamber, the following measurements: low energy electron diffraction, energy loss spectroscopy, Auger spectroscopy, electron stimulated desorption of ions, flash desorption, and incremental work function measurements. It is capable of operating over a wide range of incident electron beam energies (4 eV<(E sub p)<1800 eV) and spectral energies (0 eV<E 1000 eV), and it provides charge/mass identification of desorbed ions through time-of-flight measurements. This spectrometer has been applied to a study of the clean (100) surface of single crystal tungsten and its interaction with oxygen at submonolayer coverages. Emphasis was placed on developing an understanding of the energy loss mechanisms in tungsten in order to obtain information on the electronic structure of the substrate and adsorbate.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1975
- Accession Number
- ADA006786
Entities
People
- Paul Ernest Luscher
Organizations
- University of Illinois Urbana–Champaign