1974
DOI: 10.1002/pssb.2220640212
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Electron Energy Loss Spectra and Optical Constants for the First Transition Series from 2 to 120 eV

Abstract: Energy loss spectra in the first series transition metals (Ti, V, Cr, Mn, Fe, Co, Ni) have been performed by transmission of 35 keV electrons through thin films (200 to 400 Å) in the spectral range 2 to 120 eV. Experimental data processing enables to distinguish between single scattering volume losses and surface losses. Characteristic functions, such as the energy loss function, the complex dielectric constant, and the optical absorption coefficient are computed and compared with results obtained by different… Show more

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Cited by 139 publications
(20 citation statements)
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“…Figure 2 includes optical and TEELS data, reported previously in the literature, 35 -40 for comparison with the respective ELFs determined in this paper. Figure 2(a) shows that the ELF for Ti agrees rather well with TEELS data published by Wehenkel et al 35 (dotted line). An ELF obtained previously by Yubero 36 (dashed line) using the same procedure but a different experimental set-up, i.e.…”
Section: Results and Discussion Electron Energy-loss Functions And Insupporting
confidence: 89%
“…Figure 2 includes optical and TEELS data, reported previously in the literature, 35 -40 for comparison with the respective ELFs determined in this paper. Figure 2(a) shows that the ELF for Ti agrees rather well with TEELS data published by Wehenkel et al 35 (dotted line). An ELF obtained previously by Yubero 36 (dashed line) using the same procedure but a different experimental set-up, i.e.…”
Section: Results and Discussion Electron Energy-loss Functions And Insupporting
confidence: 89%
“…They have consequently been as- signed as excitations due to the surface and bulk plasmons [15], which is also in accordance with previous ELS studies [16][17][18]. The energy loss feature at 4.8 eV is consistent with a d → d transition from filled 3d states in the valence band to unfilled 3d states in the conduction band [16][17][18][19]. A similar feature is observed in the Ni ELS spectra at 3.7 eV (Fig.…”
Section: Chromiumsupporting
confidence: 86%
“…A similar feature is observed in the Ni ELS spectra at 3.7 eV (Fig. 1a) and is also observed in the ELS spectra from other 3d transition metals [16][17][18]. Interband transitions due to excitations of the 3p electrons to the conduction band produce energy losses in the region of 42-50 eV, centered at 45.4 [20], which is somewhat broad due to the high dispersion of the final, unfilled 3d states [21].…”
Section: Chromiumsupporting
confidence: 70%
“…Известно, что межатомное взаимодействие связано с валентными электронами, которые для металлов коллективизированы. С этой точки зрения одной из важных количественных характеристик межатомного взаимодействия в металлах является энергия коллективного колебания валентных электронов (энергия плазмона E pl ), которая достаточно точно оценивается из экспериментальных данных по неупругому рас-сеянию быстрых электронов [8,9] и определяется эффективной элек-тронной концентрацией (долей электронов, участвующих в межатомном взаимодействии) [9][10][11][12]. В [12] показано, что для металлов первых трех периодов таблицы Менделеева имеется четкая корреляция между энергией плазмона и одной из наиболее надежных (также энерге-тической) характеристик межатомного взаимодействия -теплотой сублимации; для металлов с полиморфными превращениями эта кор-реляция усложняется.…”
Section: ви бетехтин аг кадомцев мв нарыковаunclassified