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The rate of propagation of ultrasonic waves in ADP in voigt's theory

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Czechoslovak Journal of Physics B Aims and scope

Abstract

The difference measured in the rates of propagation of shear ultrasonic wavesv zx andv zx in an ADP crystal is one of the bases of the Laval-Raman theory of the elastic properties of crystals. In the present paper an attempt is made to obtain by calculation a similar difference in rates within the old Voigt theory by using the more perfect methods of computation of Lawson and Paillouxe. The calculations, together with an estimate of the influence of second-order effects, however, indicate that the measured differences in rates cannot be explained even in this way by means of Voigt's theory.

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Author notes

  1. K. Hruška

    Present address: Technical College of Mechanical and Textile Engineering, Hálkova 6, Liberec, Czechoslovakia

Authors and Affiliations

  1. Department of Physics, University of Khartoum, Czechoslovakia

    K. Hruška

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  1. K. Hruška
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Additional information

In conclusion, the author would like to express his sincere thanks to Senior Lecturer L. Janík for cooperation in the measurements, Assistant Professor J. Tichý for kindly lending the results of his own measurements and less accessible literature, and Technician R. Suchy for assistance in adapting the experimental equipment. He is also indebted to Professor P. A. O'Brien and the head of the Czechoslovak Commercial Section in Khartoum, B. Sychra, for help in elaborating this contribution.

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Hruška, K. The rate of propagation of ultrasonic waves in ADP in voigt's theory. Czech J Phys 16, 446–454 (1966). https://doi.org/10.1007/BF01696256

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  • DOI: https://doi.org/10.1007/BF01696256

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