Admittance spectroscopy measurements of band offsets in Si/Si1−xGex/Si heterostructures

Abstract
Admittance spectroscopy has been used to measure conduction‐ and valence‐band discontinuities in Si/Si1−xGex heterojunctions (0<x1−xGex films, and it decreased when the Si1−xGex layers started to relax. These results indicate that admittance spectroscopy can be used to monitor the electronic properties of transistorlike Si/Si1−xGex/Si heterostructures.