| Numéro |
J. Phys. I France
Volume 4, Numéro 7, July 1994
|
|
|---|---|---|
| Page(s) | 1077 - 1084 | |
| DOI | https://doi.org/10.1051/jp1:1994185 | |
J. Phys. I France 4 (1994) 1077-1084
Note on ultrasonic effects due to third-order elastic coefficients in icosahedrally symmetric systems
Shmuel Y. Goshen1 and Joseph L. Birman21 Physics Dept., Nuclear Research Center, Negev, P.O. Box 9001, Beer-Sheva 84190, Israel
2 Physics Dept., City College of the City University of New York, New York, NY 10031, U.S.A.
(Received 6 September 1993, revised 14 March 1994, accepted 21 March 1994)
Abstract
The identification of alloy systems of AlMn and other compounds with
macroscopic icosahedral symmetry has been reported. In this work we
discuss several macroscopic tensor properties which may distinguish
between icosahedral point group symmetry I, from either full isotropie
SO (3) symmetry, or cubic O symmetry. Emphasis is given to the
structure of the third order elastic coefficient tensor and the
non-linear elastic coefficients which arise in 1-symmetry systems.
Corresponding sound velocities are obtained : these can permit
experimental measurements using ultrasonic techniques.
© Les Editions de Physique 1994