Abstract
The use of an auxiliary électron gun allows us to apply High Resolution Electron Energy Loss Spectroscopy (HREELS) to the study of non-conducting samples. Expérimental results are presented for crystalline surfaces : MgO (001), α-Al2O 3 (001), and LiF (001). The infrared optical constants of these materials are obtained by data processing with the dielectric theory describing the interaction of an electron with surface phonons (Fuchs-Kliewer type). These results are compared to data obtained by infrared spectroscopy and the specificity of HREELS is emphasized as far as surface properties are concerned. Two examples of non-crystalline materials are presented : the study of a semiconductor-oxide interface (SO2/Si) and of an organic polymer (polyethylene).
Original language | French |
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Pages (from-to) | 103-112 |
Number of pages | 10 |
Journal | Journal de Physique. Colloque |
Volume | 47 |
DOIs | |
Publication status | Published - 1986 |