Phonon confinement in one-dimensional hybrid periodic/quasiregular structures -: art. no. 132301

被引：19

作者：

Montalbán, A

Velasco, VR

Tutor, J

Fernández-Velicia, FJ

机构：

[1] Univ Miguel Hernandez, Dept Ciencia & Tecnol Mat, Div Opt, Elche, Spain

[2] CSIC, Inst Ciencia Mat Madrid, E-28049 Madrid, Spain

[3] Univ La Habana, Inst Mat & React, Havana 10400, Cuba

[4] Univ Nacl Educ Distancia, Fac Ciencias, Dept Fis Mat, Madrid 28080, Spain

来源：

PHYSICAL REVIEW B | 2004年 / 70卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.70.132301

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have studied the vibrational frequencies and atom displacements of one-dimensional hybrid systems formed by combinations of periodic and quasiregular (Fibonacci) blocks. The materials are described by nearest-neighbor force constants and the corresponding masses. It is found that the hybrid system exhibits a frequency spectrum with important differences as regards those corresponding to their periodic and quasiregular constituents. In this way we find a separate confinement of the atom displacements in the different parts of the hybrid structure for given frequency ranges.

引用

页码：132301 / 1

页数：4

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