Title

High-energy phonon confinement in nanoscale metallic multilayers

Authors

Authors

B. R. Cuenya; W. Keune; R. Peters; E. Schuster; B. Sahoo; U. von Horsten; W. Sturhahn; J. Zhao; T. S. Toellner; E. E. Alp;S. D. Bader

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

Phys. Rev. B

Keywords

NUCLEAR RESONANT SCATTERING; DENSITY-OF-STATES; SYNCHROTRON-RADIATION; FILM STRUCTURES; SUPERLATTICES; INTERFACE; FE; MODES; ROUGHNESS; LATTICE; Physics, Condensed Matter

Abstract

The Fe-projected vibrational density of states g(E) in nanoscale (57)Fe/M multilayers, where M=Cr, Co, Cu, Pd, or Ag was measured by nuclear resonant inelastic x-ray scattering. With decreasing Fe thickness, the high-energy phonon peak of Fe near 36 meV is suppressed for the "soft" metals Ag, Pd, and Cu, but much less so for the "hard" metals Co and Cr. This effect is attributed to Fe phonon confinement and interface localization due to an energy mismatch between g(E) of M and of Fe.

Journal Title

Physical Review B

Volume

77

Issue/Number

16

Publication Date

1-1-2008

Document Type

Article

DOI Link

http://dx.doi.org/10.1103/PhysRevB.77.165410

Language

English

First Page

6

WOS Identifier

WOS:000255457500108

ISSN

1098-0121

Recommended Citation

"High-energy phonon confinement in nanoscale metallic multilayers" (2008). Faculty Bibliography 2000s. 250.
https://stars.library.ucf.edu/facultybib2000/250