Reflection electron energy loss spectroscopy of structures based on silicon and transition metals

20th International Scientific Conference Reshetnev Readings-2016

Parshin, A.S.^1 ; Igumenov, A. Yu^1 ; Mikhlin, Yu L.^2 ; Pchelyakov, O.P.^1,3 ; Zhigalov, V.S.^1,4

Reshetnev Siberian State University of Science and Technology, 31 Krasnoyarskiy Rabochiy av., Krasnoyarsk

660037, Russia^1

Institute of Chemistry and Chemical Technologies, Siberian Branch, Russian Academy of Sciences, 50/24 Akademgorodok, Krasnoyarsk

660036, Russia^2

Rzhanov Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences, 13 Academician Lavrentjev Av., Novosibirsk

630090, Russia^3

Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, 50/38 Akademgorodok, Krasnoyarsk

660036, Russia^4

关键词: Bulk plasmons;    Electron energy loss spectrum;    Inelastic electron scattering cross sections;    Iron content;    Iron silicides;    Peak energy;    Reflection electron energy loss spectroscopies;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/255/1/012019/pdf
DOI  :  10.1088/1757-899X/255/1/012019

来源: IOP

【 摘 要 】

The investigation of iron silicides FeSi2, FeSi and Fe5Si3with the methods of reflection electron energy loss spectroscopy and inelastic electron scattering cross-section spectroscopy was carried out. It is shown that the shape and peak energy position of electron energy loss spectra are almost identical to silicides with different composition, while the amplitude of inelastic electron scattering cross-section spectra decreases with increasing of iron content. The decomposition of inelastic electron scattering cross-section spectra of FeSi2, FeSi and Fe5Si3to Tougaard peaks is used for unresolved energy loss peaks analysis, determination its energies and identification bulk and surface peaks. The amplitude of fitting peak describing bulk plasmon excitation can be used for identification of the iron silicides with different composition.