Wyznaczanie średniej nieelastycznej drogi swobodnej elektronów w wybranych stopach binarnych za pomocą elektronowej spektroskopii piku elastycznego (EPES)

• Autorzy: Krawczyk M. , Sobczak J. W. , Jabłoński A.

Warianty tytułu

EN

Determination of the inelastic mean free path of electrons in selected binary alloys by elastic peak electron spectroscopy (EPES)

• Konferencja: II Kongres Towarzystwa Próżniowego ; 13-17.05.2001 ; Warszawa, Polska
• Języki publikacji: PL

Abstrakty

EN

While inelastic mean free paths of electrons (IMFPs) for different energies can be calculated for alloys from predictive formulae, IMFPs can be experimentally measured by the elastic peak electron spectro­scopy (EPES). In this method, experimentally determined ratios of elastically backscattered electrons from test surfaces and from a reference material are compared with the values evaluated from Monte Carlo calculations. The paper is dealing with the experimental determination of the IMFP in selected binary alloys, i.e. Au_xCu_100-x (x = 25, 50, 75 at.%) and Au_xPd_100-x (x= 10, 50, 90 at.%) within the 200-2000 eV range. The data were recorded using the DCMA-PHI15-255G spectrometer. Surface composition of the alloy samples was investigated prior to and after the EPES measurements by x-ray photoelectron spectroscopy (XPS) using an ESCALAB 210 spectrometer. The relative EPES measurements were performed with use of an Au standard. The measured IMFPs were compared with IMFPs calculated from the TPP-2M predictive formula of Tanuma et al. The scatter between the measured IMFPs and calculated from the predictive formula has been statistically analysed.

Słowa kluczowe

PL

metoda EPES; algorytm Monte Carlo; analiza

EN

EPES metod; Monte Carlo algorithm; analysis

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Elektronika : konstrukcje, technologie, zastosowania
• Rocznik: 2001
• Tom: Vol. 42, nr 8-9
• Strony: 66--67
• Opis fizyczny: Bibliogr. 23 poz., tab., wykr.

Twórcy

autor

Krawczyk M.

autor

Sobczak J. W.

autor

Jabłoński A.

• Zakład Fizykochemii Powierzchni, Instytut Chemii Fizycznej, Polska Akademia Nauk, Warszawa,