Electron-Surface-Plasmon Scattering Using a Parabolic Nontouching Trajectory
- 3 January 1977
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 38 (1) , 36-40
- https://doi.org/10.1103/physrevlett.38.36
Abstract
Incident electrons follow a parabolic trajectory when an electric field is applied normal to the surface of a metal crystal with force vector directed outwards. Under appropriate conditions touching trajectories may be neglected, and electron-surface-plasmon scattering is dominated by trajectories with closest approach distance. Experimental results are presented for Mo indicating that only the 1.3-eV molybdenum surface plasmon is excited. Application of this new technique to measurements such as surface-plasmon dispersion is outlined.Keywords
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