Dwell Time of Particles in Tunneling Barriers of Arbitrary Shape
作者机构：Institute of Applied Nuclear TechnologyShenzhen UniversityShenzhen 518060 School of ScienceShenzhen UniversityShenzhen 518060
出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)
年 卷 期：1998年第15卷第12期
页 面：862-864页
核心收录：
学科分类：080903[工学-微电子学与固体电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学]
基 金：Supported by Shenzhen Scince-Technology Programs
摘 要：For a one-dimensional barrier of arbitrary shape,an expression of the dwell time of tunneling particles has been obtained by subdividing it into infinitesimal rectangular barrier elements and then summing the dwell times spent by particles inside the barrier elements,and the dwell times in a parabolic potential barrier were *** results show that the dwell times are almost independent of the barrier width as it is greater than a characteristic width *** can be ascribed that in the width range beyond Wc,the tunneling probabilities through the barrier elements are very small,thus the times taken to tunnel through them make little contribution to the summation of the dwell times in all the barrier elements.
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