Title :
Ballistic electron propagation in a composite metamaterial
Author :
Dumitriu, A. ; Dragoman, Daniela
Author_Institution :
Phys. Dept., Univ. of Bucharest, Bucharest, Romania
Abstract :
The main purpose of this paper is to underline the property of periodic structures consisting of layers with imaginary wavenumbers for ballistic electrons to allow charge carrier propagation in certain energy bands. Such periodic structures are analogous to composite optical metamaterials. In addition, we compare the dependence on energy of two time parameters with relevance for electron pulses and beams: the phase time and the traversal time, respectively.
Keywords :
ballistic transport; carrier density; electron beams; metamaterials; optical metamaterials; ballistic electron propagation; ballistic electrons; charge carrier propagation; composite metamaterial; electron beams; electron pulses; energy bands; imaginary wavenumbers; layers; optical metamaterials; periodic structure property; periodic structures; phase time; time parameter energy; traversal time; Effective mass; Electron optics; Magnetic materials; Metamaterials; Optical imaging; Optical refraction; Periodic structures;
Conference_Titel :
Semiconductor Conference (CAS), 2012 International
Conference_Location :
Sinaia
Print_ISBN :
978-1-4673-0737-6
DOI :
10.1109/SMICND.2012.6400723
