Article contents
Studies of Interface Mixing in a Symmetrically Strained Ge/Si Superlattice
Published online by Cambridge University Press: 25 February 2011
Abstract
Raman scattering and x ray diffraction were used to study the effects of annealing on a Ge/Si superlattice that had been grown upon a Ge0.4Si0.6 alloy buffer layer which distributes the strain between the layers. Anneals above 910K caused substantial mixing at the Ge-Si interfaces. The interdiffusion coefficients obtained from the x-ray data were found to obey an Arrhenius relation with an activation energy of 3.1±0.2eV. Initial intermixing seems to be dominated by the diffusion of Si atoms into the Ge layers via a vacancy mechanism.
- Type
- Research Article
- Information
- Copyright
- Copyright © Materials Research Society 1989
References
- 1
- Cited by