Phase breaking and energy relaxation in open quantum-dot arrays

作     者：C. Prasad D. K. Ferry A. Shailos M. Elhassan J. P. Bird L.-H. Lin N. Aoki Y. Ochiai K. Ishibashi Y. Aoyagi 

作者机构：Department of Electrical Engineering and Center for Solid State Electronics Research Arizona State University Tempe Arizona 85287-5706 Department of Materials Science Chiba University 1-33 Yayoi Inage Chiba 236-8522 Japan Semiconductor Laboratory RIKEN 2-1 Hirosawa Wako Saitama 351-0198 Japan 

出 版 物：《Physical Review B》 (Phys. Rev. B Condens. Matter Mater. Phys.)

年 卷 期：2000年第62卷第23期

页      面：15356-15356页

核心收录：

摘      要：We study both the phase-breaking and the energy-relaxation times as a function of both temperature and bias current in arrays of coupled, open quantum dots. These times show a saturation at low temperature, and a decay at higher temperatures. Importantly, the variations of sample resistance as a function of temperature and current cannot be used to infer the electron temperature at a given bias current, which suggests that the energy relaxation process is likely to be phonon based.