Thermionic Emission Spectroscopy of Metals

  • A. Modinos

Abstract

We know (see Chapter 1) that at sufficiently high temperatures, a small fraction of the electrons in a metal have energies higher than the maximum of the potential barrier at the surface and some of them escape from the metal giving rise to a thermionic current. The potential barrier is shown (schematically) in Fig. 9.1. On the vacuum side of the interface at distances larger than 4 Å or so from the top layer of atoms the electron moves in a potential field described by (see Section 1.3)
$$v(z) \simeq \frac{{ - {e^2}}}{{4z}} - eFz + {E_F} + \phi $$
(9.1)

Keywords

Reflection Coefficient Thermionic Emission Imaginary Component Thermal Vibration Thermal Electron 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1984

Authors and Affiliations

  • A. Modinos
    • 1
  1. 1.University of SalfordSalfordEngland

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