Hypersound waves at the surface of CdZnTe crystals: The role of surface orientation and scattering at twin boundaries
- Authors: Klokov A.Y.1, Krivobok V.S.1, Sharkov A.I.1, Tsvetkov V.A.1, Aminev D.F.1
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Affiliations:
- Lebedev Physical Institute
- Issue: Vol 106, No 8 (2017)
- Pages: 503-508
- Section: Condensed Matter
- URL: https://journals.rcsi.science/0021-3640/article/view/160650
- DOI: https://doi.org/10.1134/S0021364017200097
- ID: 160650
Cite item
Abstract
The patterns of propagation of gigahertz surface acoustic waves (SAWs) are obtained for cuts of CdZnTe single crystals with different crystallographic orientations. By comparing the experimental patterns with the calculated ones, the existence of at least two SAW modes, one of which is a Rayleigh mode, is demonstrated. It is shown that the anisotropy of propagation of different SAW modes makes it possible to determine the local crystallographic orientation of the CdZnTe surface and detect local imperfections of the crystal structure. Strong anisotropic scattering of the Rayleigh wave by coherent twin boundaries is found.
About the authors
A. Yu. Klokov
Lebedev Physical Institute
Author for correspondence.
Email: klokov@lebedev.ru
Russian Federation, Moscow, 119991
V. S. Krivobok
Lebedev Physical Institute
Email: klokov@lebedev.ru
Russian Federation, Moscow, 119991
A. I. Sharkov
Lebedev Physical Institute
Email: klokov@lebedev.ru
Russian Federation, Moscow, 119991
V. A. Tsvetkov
Lebedev Physical Institute
Email: klokov@lebedev.ru
Russian Federation, Moscow, 119991
D. F. Aminev
Lebedev Physical Institute
Email: klokov@lebedev.ru
Russian Federation, Moscow, 119991
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