Published Research - Department of Chemistry


Date of this Version

August 1987


Published by Am Physical Soc. Phys. Rev. Lett. 59, 574 - 577 (1987). Copyright 1987. Permission to use.


Piezomodulated Raman scattering is used to determine the extent of anharmonicity, the phonon-phonon coupling, and the presence of modes involved in the phase transition of 1,2,4,5-tetrabromobenzene. The experiments support earlier theoretical predictions and demonstrate that piezomodulated Raman spectroscopy is an important new approach to the experimental study of lattice dynamics.

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