Abstract
Experiments with monochromatically generated phonons in Al2O3 are reported. We found that the lifetime of phonons, trapped in a ruby crystal because of resonance scattering at excited Cr3+ ions, is strongly reduced after X-ray irradiation of the crystal indicating inelastic scattering at impurity ions generated by the X irradiation. Furthermore, direct observation of inelastic scattering of phonons, trapped in Al2O3 because of resonance scattering at V4+ ions, is reported.
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References
M. Engelhardt, U. Happek, K.F. Renk: Phys. Rev. Lett. 50, 116 (1983)
K.F. Renk: “Far Infrared Volume-Generation and -Detection of Phonons”; this volume
W.E. Bron, Y.B. Levinson, J.M. O’Connor: Phys. Rev. Lett. 49, 209 (1982)
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© 1984 Springer-Verlag Berlin Heidelberg
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Engelhardt, M., Renk, K.F. (1984). Phonon Decay in X-Ray Irradiated Ruby Crystals. In: Eisenmenger, W., Laßmann, K., Döttinger, S. (eds) Phonon Scattering in Condensed Matter. Springer Series in Solid-State Sciences, vol 51. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-82163-9_31
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DOI: https://doi.org/10.1007/978-3-642-82163-9_31
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