Measurement of Third-Order Elastic Moduli of Yttrium Iron Garnet
- 1 May 1966
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 37 (6) , 2312-2316
- https://doi.org/10.1063/1.1708810
Abstract
The third-order elastic moduli of yttrium iron garnet (YIG) have been determined from measurements of ultrasonic velocity. A pulsed ultrasonic system which uses a phase comparison principle to measure velocity versus applied stress is described. In units of 1012 dyn/cm2 and for 28°C, the third-order moduli are: C111=−23.3±0.8C112=−7.17±0.6C123=−0.33±1.3C144=−1.48±0.29C155=−3.06±0.14C456=−0.97±0.16.Thermodynamic definitions for the moduli [K. Brugger, Phys. Rev. 133, A1611 (1964)] have been used.This publication has 10 references indexed in Scilit:
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