声波在声子晶体中的Zener共振遂穿效应  

Zener resonant tunneling effect of the acoustic wave in phonon crystal

作　　者：赵琳瑶[1] 张婷[1] 刘锦锋[1] 任立庆[1] 郭建中[1] 李永放[1] 

机构地区：[1]陕西师范大学物理学与信息技术学院,陕西西安710062

出　　处：《陕西师范大学学报（自然科学版）》2012年第3期27-32,共6页Journal of Shaanxi Normal University：Natural Science Edition

基　　金：国家自然科学基金资助项目(10974128)

摘　　要：应用转移矩阵方法,研究了由两个全同声子晶体构成的可调谐声学谐振腔中声波的共振遂穿效应,其遂穿过程类似于量子力学中的Zener共振遂穿效应.通过改变声波谐振腔的长度,研究了声子晶体的带隙中声波遂穿的动力学过程.结果表明:不同带隙具有不同的遂穿特征,遂穿频率随着谐振腔的增加呈周期性振荡变化的规律.Based on the transfer-matrix method, the resonant tunneling effect of the acoustic wave in a tunable acoustic-phonon cavity made of two identical aeoustic-phonon superlattices, which are similarly to the Zener tunneling effect of the quantum mechanics is studied theoretically. The acoustic wave tunneling kinetics process in the frequency gaps of the phonons superlattices is investigated by altering the length of the acoustic wave resonant-cavity. For the different frequency gaps, the tunneling characteristics are of difference, and the tunneling frequencies of the acoustic wave presents periodicity with the increase of the resonant-cavity.

关 键 词：声子晶体 Zener隧道效应 声波隧穿效应 

分 类 号：O413.1[理学—理论物理]