Localized phonon modes in Fe-Pd multilayer structures

P. Baumgart; B. Hillebrands; R. Mock; G. Güntherodt; A. Boufelfel; C. M. Falco

doi:10.1103/PhysRevB.34.9004

Localized phonon modes in Fe-Pd multilayer structures

P. Baumgart, B. Hillebrands, R. Mock, G. Güntherodt, A. Boufelfel, C. M. Falco

Optical Sciences, College of

Research output: Contribution to journal › Article › peer-review

34 Scopus citations

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, the elastic constant c11 shows an interface-induced softening of up to 20%.

Original language	English (US)
Pages (from-to)	9004-9007
Number of pages	4
Journal	Physical Review B
Volume	34
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevB.34.9004
State	Published - Jan 1 1986

ASJC Scopus subject areas

Condensed Matter Physics

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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, the elastic constant c11 shows an interface-induced softening of up to 20%.",

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AU - Hillebrands, B.

AU - Mock, R.

AU - Güntherodt, G.

AU - Boufelfel, A.

AU - Falco, C. M.

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AB - 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, the elastic constant c11 shows an interface-induced softening of up to 20%.

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