J.-M. Halbout, P.G. May, et al.
TMPEO 1986
Paper
Scanning tunneling microscopy and spectroscopy of Si/SiGe(001) superlattices
Abstract
Cross-sectional scanning tunneling microscopy and spectroscopy were used to study a modulation-doped Si/Si0.76Ge0.24(001) superlattice. Contrast between the Si and Si0.76Ge0.24 layers has been observed in topographic images. Features such as band-edge discontinuities and band bending arising from doping have been detected in spectroscopic measurements at a series of points across the superlattice structure.
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