Metal Oxide Reactions in Complex Environments: High Electric Fields and Pressures above Ultrahigh Vacuum Page: 19
View a full description of this dissertation.
Extracted Text
The following text was automatically extracted from the image on this page using optical character recognition software:
and interfaces. It cannot detect hydrogen or helium, but is sensitive to all other elements,
being most sensitive to the low atomic number elements. Auger electron spectroscopy
(AES) identifies elemental compositions of surfaces by measuring the energy of Auger
electrons. The surface sensitivity of AES is due to the low energy of these electrons (E <
1000 eV). Electrons in this energy range interact with solid matter very strongly; as a
result, their inelastic mean free paths within solid are only a few atomic layers, making
AES a suitable technique for surface analysis [92, 93].
electron Auger electron
I/A
L3
e -L2
0 0 K0
(a) (b)
Fig. 1.4. Schematic of Auger process: (a) removal of a core electron; (b) Auger electron emission.
The Auger emission process involves three electrons as shown in. Fig. 1.4. The
basic Auger process starts with removal of an inner shell (core level) atomic electron to
form a vacancy by bombarding the sample with an electron beam. A second atomic
electron falls from a higher shell to fill the inner shell vacancy. Energy must be19
Upcoming Pages
Here’s what’s next.
Search Inside
This dissertation can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Dissertation.
Qin, Feili. Metal Oxide Reactions in Complex Environments: High Electric Fields and Pressures above Ultrahigh Vacuum, dissertation, August 2005; Denton, Texas. (https://digital.library.unt.edu/ark:/67531/metadc4843/m1/30/: accessed July 17, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; .