Ultrasonic Velocity and Attenuation in K $H_{2}$ P $O_{4}$

Publisher Website

10 January 1969

journal article
research article
Published by American Physical Society (APS) in Physical Review B

Vol. 177 (2) , 971-975
https://doi.org/10.1103/physrev.177.971

Abstract

The velocity and attenuation of ultrasonic shear waves have been investigated at temperatures above

T_{C} = {121.8}_{2} °

K in single-crystal KDP. An elastic Curie-Weiss law,

({s_{66}}^{E} - {s_{66}}^{P}) = \frac{D}{(T - T_{C})}

, is obtained with an elastic Curie constant

D

equal to 6.31×

10^{- 11}

{dyn}^{- 1}

{cm}^{2}

deg. The attenuation data are consistent with a cooperative relaxation time at constant stress

τ

which varies as

τ = \frac{24 \times 10^{- 12}}{(T - T_{C})}

sec.

Keywords

This publication has 16 references indexed in Scilit:

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