Abstract
Optical absorption measurements for diamond cubic ${\mathrm{Sn}}_{x}{\mathrm{Ge}}_{1\ensuremath{-}x}$ alloy films indicate strong interband transitions with a change in direct energy gap of $0.35l{E}_{g}l0.80\mathrm{eV}$ for $0.15gxg0$. The optical energy gap undergoes an indirect to direct transition in this composition range and decreases much faster with Sn content than predicted by tight binding and pseudopotential calculations in the virtual crystal approximation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
