Optical phonons in ZnSxSe1-x mixed crystals
Date of Original Version
The infrared reflection and transmission and Raman spectra of the mixed system ZnSxSe1-x reveal two LO and TO phonons at k→∼0 for any concentration. The local and gap mode frequencies follow as extrapolations of the mixed crystal system behavior. A "sum rule" pertaining to the mixed system optical phonons is proposed. © 1967 The American Physical Society.
Physical Review Letters
Brafman, O., I. F. Chang, G. Lengyel, S. S. Mitra, and E. Carnall. "Optical phonons in ZnSxSe1-x mixed crystals." Physical Review Letters 19, 19 (1967): 1120-1123. doi:10.1103/PhysRevLett.19.1120.