SURFACE PHONONS IN PERIODIC AND FIBONACCI NB/CU SUPERLATTICES

被引：13

作者：

CARLOTTI, G ^{[1
]}

FIORETTO, D ^{[1
]}

PALMIERI, L ^{[1
]}

SOCINO, G ^{[1
]}

VERDINI, L ^{[1
]}

XIA, H ^{[1
]}

HU, A ^{[1
]}

ZHANG, XK ^{[1
]}

机构：

[1] NANJING UNIV,NATL LAB SOLID STATE MICROSTRUCT,NANJING 210008,PEOPLES R CHINA

来源：

PHYSICAL REVIEW B | 1992年 / 46卷 / 19期

关键词：

D O I：

10.1103/PhysRevB.46.12777

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Surface phonons in both periodic and Fibonacci Nb/Cu metallic superlattice systems have been studied by means of the Brillouin light-scattering technique. Measurement of the phase velocity of the surface Rayleigh wave enabled us to compare the elastic properties of these two types of structures with those calculated from the elastic constants of bulk Cu and Nb. The results obtained have shown that the relevant parameter for determining the elastic behavior of quasiperiodic Fibonacci superlattices is the average distance between Nb/Cu interfaces, rather than the quasiperiodicity, which is the governing parameter in x-ray and structural analysis.

引用

页码：12777 / 12779

页数：3

共 11 条

[1] DYNAMIC APPROACH FOR FINDING EFFECTIVE ELASTIC AND PIEZOELECTRIC CONSTANTS OF SUPERLATTICES [J].