Localized phonon modes in Fe-Pd multilayer structures
- 15 December 1986
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 34 (12), 9004-9007
- https://doi.org/10.1103/physrevb.34.9004
Abstract
The Rayleigh mode and up to six higher-order localized acoustic (Sezawa) surface modes have been observed in Fe-Pd multilayer structures using Brillouin scattering. The effective elastic constants of the multilayer structures have been determined from a fit of the measured mode dispersions. With decreasing multilayer modulation wavelength from 87 to 33 Å, the elastic constant shows an interface-induced softening of up to 20%.
Keywords
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