Abstract
The lattice dynamics of random ${A}_{x}{B}_{1\ensuremath{-}x}\mathrm{N}$ alloys $(A,B=\mathrm{A}\mathrm{l},\mathrm{}\mathrm{G}\mathrm{a},\mathrm{}\mathrm{In})$ is studied with a method based on the modified random-element isodisplacement (MREI) and a rigid-ion model. The MREI description is generalized so that no additional force constants are needed but all lattice vibrations can be considered. Phonon frequencies and spectral weights are studied versus composition x for zinc-blende and wurtzite mixed crystals. The one- and two-mode behavior of the zone-center optical phonons is discussed in the light of the interplay of elastic and electric forces as well as of the atomic masses. The results are compared with data from recent Raman and IR measurements.
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.
