Confined phonons in metallic superlattices: Raman study of Co/Ru

被引：16

作者：

Grimsditch, M ^{[1
]}

Mattson, JE ^{[1
]}

Sowers, CH ^{[1
]}

Bader, SD ^{[1
]}

Peters, MJ ^{[1
]}

机构：

[1] APPALACHIAN STATE UNIV,DEPT PHYS & ASTRON,BOONE,NC 28607

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.77.2025

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The Raman-active transverse-optic (TO) phonon mode of Ru was measured in a series of Co/Ru superlattices. The changes in the frequency of the TO vibration, interpreted within the framework of confined phonons, are in excellent agreement with published dispersion curves for bulk Ru obtained from inelastic neutron-scattering experiments. Interpretations of the frequency shifts of the Ru TO mode as due to phonon-folding or lattice-strain effects are ruled out by the data.

引用

页码：2025 / 2028

页数：4

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