Local order measurement in SnGe alloys and monolayer Sn films on Si with reflection electron energy loss spectrometry
نویسندگان
چکیده
Measurements of local order are demonstrated in Sn-containing alloys and epitaxial monolayer thickness films by analysis of extended-edge energy loss fine structure ~EXELFS! data obtained by reflection electron energy loss spectrometry ~REELS!. These measurements of short-range order provide a complement to the chemical information obtained with REELS and long-range order obtained using reflection high energy electron diffraction. The results suggest that EXELFS measurements are practical for samples mounted on the growth manipulator in a molecular beam epitaxy chamber. Advantages and limitations of reflection EXELFS are discussed. © 1995 American Vacuum Society.
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