Femtosecond resolution of soft mode dynamics in structural phase transitions

Science (New York, N.Y.)
|October 30, 1992
PubMed
Summary

Impulsive stimulated Raman scattering (ISRS) effectively probes soft phonon modes in perovskite ferroelectrics like KNbO(3) and BaTiO(3). This time-domain technique clarifies lattice dynamics crucial for understanding phase transitions.

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