Characteristic energy loss of electrons in Mg with angle resolution

Authors

DOI:

https://doi.org/10.33910/2687-153X-2020-1-1-4-9

Keywords:

electron spectroscopy, bulk plasmons, surface plasmons, elastic electron scattering, electron wave refraction

Abstract

The article discusses electron energy loss of bulk and surface plasmons in solid polycrystalline Mg films. The experimental study of the electrons’ characteristic energy loss is conducted and its results are compared in a wide range of electron incidence angles on the sample (0°–89°), dispersion angles (5°–165°) and electron energies (100–600 eV). Electron wave refraction at the vacuum–solid state interface is considered as one of the factors determining the intensity of surface plasmons.

References

Iakoubovskii, K., Mitsuishi, K., Nakayama, Y., Furuya, K. (2008) Thickness measurements with electron energy loss spectroscopy. Microscopy Research & Technique, 71 (8), 626–631. DOI: 10.1002/jemt.20597 (In English)

Oura, K., Lifshits, V. G., Saranin, A. A. et al. (2006) Vvedeniye v fiziku poverkhnosti [Introduction to surface physics]. Moscow: Nauka Publ., 490 p. (In Russian)

Raether, H. (1980) Surface excitations. In: H. Raether. Excitation of plasmons and interband transitions by electrons. Berlin; Heidelberg: Springer, 116–171. DOI: 10.1007/BFb0045962 (In English)

Stern, E. A., Ferrell, R. A. (1960) Surface plasma oscillations of a degenerate electron gas. Physical Review, 120 (1), 130–136. DOI: 10.1103/PhysRev.120.130 (In English)

van Attekum, P. M. Th. M., Trooster, J. M. (1979) Bulk- and surface-plasmon-loss intensities in photoelectron, Auger, and electron-energy-loss spectra of Mg metal. Physical Review B, 20 (6), 2335–2340. DOI: 10.1103/PhysRevB.20.2335 (In English)

Published

2020-03-27

Issue

Section

Condensed Matter Physics