Zener tunneling of acoustic waves in a one-dimensional phononic crystal
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- 作者：Zhaojian He ; Shasha Peng ; Yun Wang ; Manzhu Ke ; Zhengyou Liu
- 关键词：A. Phononic crystal ; D. Zener tunneling ; D. Enhanced transmission peak
- 刊名：Solid State Communications
- 出版年：2007
- 出版时间：December 2007
- 年：2007
- 卷：144
- 期：10-11
- 页码：433-436
- 全文大小：688 K
文摘
We numerically study the Zener tunneling of acoustic waves in a one-dimensional phononic crystal (PC). The PC is designed to possess two minibands separated by a narrow frequency gap, which further form two acoustic Wannier–Stark ladders when an increasing gradient in the width of elementary cell of PC is introduced. Resonant tunneling between two Wannier–Stark states in different minibands is observed.