Jc. Brighten et al., THE DETERMINATION OF VALENCE-BAND DISCONTINUITIES AND INTERFACE CHARGE-DENSITIES IN SI SI1-YGEY/SI HETEROJUNCTIONS/, Semiconductor science and technology, 8(7), 1993, pp. 1487-1489
The valence band offsets in Si/Si1-yGey/Si strained-layer heterostruct
ures with 0 < y < 0.14 have been determined by CV measurements and fro
m the analysis of Kroemer. Good agreement is obtained with theoretical
predictions of values in the range 0 to 0.1 eV. Extracted interface c
harge densities are consistent with values deduced from parallel trans
port measurements in 2DHG structures.