Longwave Phonon Tunnelling Using an Impedance Concept

摘要：

In this paper we study numerically the transmission, reflection and dwell times of phonons propagating through semiconductor multilayer structures. The tunnelling of optical and acoustic phonon at normal incidence on multiple layers systems is analyzed. We adopt the continuum model valid for long-wavelength oscillations. The isomorphism between acoustical and optical propagation in heterostructures, and electromagnetic waves in transmission lines, is analyzed. We use an impedance concept similar to the quantum-mechanical one introduced by Khondker to calculate the transmission and reflection coefficients. This study could also be useful for the design of phonons filters.

作者: D.Villegas F.de León-Pérez R.Pérez-(A)lvarez

作者单位: Physics Department,Central University Marta Abreu of Las Villas,Santa Clara,Cuba Departamento de Física de la Materia Condensada,Universidad de Zaragoza E-50009 Zaragoza,Spain Universidad Autónoma del Estado de Morelos,Ave.Universidad 1001,62209 Cuernavaca,Mexico

会议类型: 国际会议

会议名称: Progress in Electromagnetics Research Symposium 2008(2008年电磁学研究新进展学术研讨会)(PIERS 2008)

会议地点: 杭州

会议语种:英文

页码: 1-4

在线出版日期: 2008-03-24（万方平台首次上网日期，不代表论文的发表时间）