N. Sparvieri, THERMOELASTIC PROPERTIES OF AL-YIG CERAMIC SYSTEMS, Nuovo cimento della Societa italiana di fisica. D, Condensed matter,atomic, molecular and chemical physics, biophysics, 20(7-8), 1998, pp. 1239-1247
Interferometric thermal diffusivity measurements and elastic constants
obtained by ultrasonic techniques on Y3Fe5-xAlxO12 (with x = 0, 0.4,
0.8, 1.1) ceramic samples are presented and discussed. The phonon mean
free path is given as a function of x using the Boltzmann transport e
quation.