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High resolution electron energy loss spectroscopy of insulators

Authors
Journal
Journal of Electron Spectroscopy and Related Phenomena
0368-2048
Publisher
Elsevier
Publication Date
Volume
39
Identifiers
DOI: 10.1016/0368-2048(86)85033-2
Disciplines
  • Physics

Abstract

Abstract A new experimental set-up using an auxiliary electron gun allows to record highly resolved electron energy loss (HREEL) spectra on insulating samples. Surface potential stabilization is interpreted in terms of induced surface conductivity and enhanced secondary emission. Results are presented for MgO(001), Al 2O 3(0001),SiO 2(0001), LiF(001) and NaCl(001). Infrared optical constants can be retrieved from the HREEL spectra by data processing with the Dielectric Theory. These constants are obtained as accurately and independently on infrared Spectroscopy. Other examples of applications are given for non single crystalline insulating materials.

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