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Extinction of the Kapitza Anomaly for Phonons along the Surface Normal Direction

Kinder, H. and De Ninno, A. and Goodstein, D. and Paternò, G. and Scaramuzzi, F. and Cunsolo, S. (1985) Extinction of the Kapitza Anomaly for Phonons along the Surface Normal Direction. Physical Review Letters, 55 (22). pp. 2441-2444. ISSN 0031-9007.

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We have succeeded in extinguishing the anomalous Kapitza transmission of phonons whose wave vector is normal to a surface treated by conventional means and handled in air. In the same experiments, phonons approaching the surface with oblique wave vectors are anomalously transmitted. We argue that these results demonstrate that the Kapitza anomaly is due to surface defects which couple to the phonon strain field.

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Additional Information:©1985 The American Physical Society Received 28 May 1985 We wish to thank L. Mori for technical assistance in preparing the experiment.
Issue or Number:22
Record Number:CaltechAUTHORS:KINprl85
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:6050
Deposited By: Archive Administrator
Deposited On:15 Nov 2006
Last Modified:02 Oct 2019 23:28

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