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
收藏
页码：132301 / 1
页数：4
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