Cc. Ahn et al., IN-SITU REAL-TIME ANALYSIS OF ALLOY FILM COMPOSITION AND SEGREGATION DYNAMICS WITH PARALLEL DETECTION REFLECTION ELECTRON-ENERGY-LOSS SPECTROSCOPY, Applied physics letters, 71(18), 1997, pp. 2653-2655
Real-time measurements of GexSi1-x/Si(001) composition and segregation
dynamics in Sn/Si(001) in molecular beam epitaxy are demonstrated usi
ng parallel detection reflection electron energy loss spectroscopy. Pa
rallel detection enables quantitative acquisition of low-loss spectra
in a time of < 500 mu s and surface composition determination in GexSi
1-x/Si(001) via Ge L-2,L-3 core loss analysis to a precision of approx
imately 2% in time of order 1 s. Segregation and trapping kinetics of
monolayer thickness Sn films during Si epitaxy on Sn-covered Si(100) h
as also been studied using the Sn M-4,M-5 core loss. (C) 1997 American
Institute of Physics.