Abstract
THERE is wide interest in the study of the propagation of high frequency ultrasound through single crystal media, particularly as a technique for the investigation of spin-lattice relaxation phenomena. Experiments have therefore been carried out at a frequency of 16 GHz to obtain ultrasonic pulse echoes in single crystals of magnesia, calcia and spinel.
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Bommel, H. E., and Dransfeld, K., Phys. Rev. Lett., 1, 234 (1958).
Lewis, M. F., J. Aconstic Soc. Amer., 40, 728 (1966).
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POINTON, A., TAYLOR, R. Elastic Constants of Magnesia, Calcia and Spinel at 16 GHz and 4.2° K. Nature 219, 712 (1968). https://doi.org/10.1038/219712a0
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DOI: https://doi.org/10.1038/219712a0
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