Selective spatial localization of the atom displacements in one-dimensional hybrid quasi-regular (Thue-Morse and Rudin-Shapiro)/periodic structures

被引：9

作者：

Montalban, A.

Velasco, V. R. ^{[1
]}

Tutor, J.

Fernandez-Velicia, F. J.

机构：

[1] Univ Miguel Hernandez, Dept Ciencia & Technol Mat, Div Opt, E-03202 Elche, Spain

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

[3] Adv Prod Espana, E-28108 Madrid, Spain

[4] Univ Nacl Educ Distancia, Fac Ciencias, Dept Fis Mat, E-280806 Madrid, Spain

来源：

SURFACE SCIENCE | 2007年 / 601卷 / 12期

关键词：

interfaces; phonons; quasi-regular systems;

D O I：

10.1016/j.susc.2007.04.204

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We have studied the vibrational frequencies and atom displacements of one-dimensional systems formed by combinations of Thue-Morse and Rudin-Shapiro quasi-regular stackings with periodic ones. The materials are described by nearest-neighbor force constants and the corresponding atom masses. These systems exhibit differences in the frequency spectrum as compared to the original simple quasi-regular generations and periodic structures. The most important feature is the presence of separate confinement of the atom displacements in one of the parts forming the total composite structure for different frequency ranges, thus acting as a kind of phononic cavity. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：2538 / 2547

页数：10

共 10 条

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[J]. PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2020, 579
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