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VOLUME 18 (1973) | ISSUE 10 | PAGE 632
Light scattering in a KI2PO4 crystal undergoing a high-temperature phase transition
We investigated light scattering in a KH2P04 crystal undergoing a phase transition at ±175°C. We show that the total intensity of the scattered light decreases near the transition point. An investigation of the fine structure of the scattered-light line has made it possible to determine the temperature dependence of the hypersonic-wave velocity.