Hostname: page-component-78c5997874-s2hrs Total loading time: 0 Render date: 2024-11-08T00:05:26.045Z Has data issue: false hasContentIssue false
  • English
  • Français

Structure dependence of tunneling lifetimes in double-barrier structures

Published online by Cambridge University Press:  20 December 2006

Hong-mei Wang  and
Ya-fei Zhang
Hong-mei Wang*
Affiliation:
Bio-X DNA Computer Consortium, National Key Laboratory of Nano/Micro Fabrication Technology, Key Laboratory for Thin Film and Microfabrication of Ministry of Education, Institute of Micro and Nano Science and Technology, Shanghai Jiao Tong University, Shanghai 200030, P.R. China
Ya-fei Zhang
Affiliation:
Bio-X DNA Computer Consortium, National Key Laboratory of Nano/Micro Fabrication Technology, Key Laboratory for Thin Film and Microfabrication of Ministry of Education, Institute of Micro and Nano Science and Technology, Shanghai Jiao Tong University, Shanghai 200030, P.R. China
*
[email protected] [email protected]
Get access

Abstract

It is known that the structure dependence of the lifetimes of quasi-bound states in rectangular multi-barrier structures is significant but still ambiguous. In this paper, we report the elaborate dependence of the lifetimes of higher quasi-bound states in symmetrical double-barrier structures on structure parameters, such as well width, barrier width and composition mole fraction. Based on the energy uncertainty condition at quasi-bound states method, numerical calculations are carried out to investigate the structure dependence of the lifetimes of higher quasi-bound states. The calculation results show that the lifetimes of higher quasi-bound states vary with structure parameters as a simple and exact function, and that the lifetimes of higher quasi-bound states increase exponentially with structure parameters.

Keywords

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 37 , Issue 1 , January 2007 , pp. 11 - 13
Copyright
© EDP Sciences, 2006

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Regan, B.C., Aloni, S., Jensen, K., Zettl, A., Appl. Phys. Lett. 86, 123119 (2005) CrossRef
Levine, B.F., J. Appl. Phys. 74, R1 (1993) CrossRef
Tsu, R., Esaki, L., Appl. Phys. Lett. 22, 562 (1973) CrossRef
Summers, C.J., Brennan, K.F., Appl. Phys. Lett. 48, 806 (1986) CrossRef
Summers, C.J., Brennan, K.F., Torabi, A., Harris, H.M., Appl. Phys. Lett. 52, 132 (1988) CrossRef
Xu, H.Z., Okada, Y., Physica B 305, 113 (2001) CrossRef
Bruno, J.D., Bahder, T.B., Morrison, C.A., Phys. Rev. B 37, 7098 (1988) CrossRef
Arsenault, C.J., Meunier, M., Phys. Rev. B 39, 8739 (1989) CrossRef
Ting, D.Z.-Y., McGill, T.C., Phys. Rev. B 47, 7281 (1993) CrossRef
Fisher, D.J., Zhang, C., J. Appl. Phys. 76, 606 (1994) CrossRef
Xu, H.Z., Zhu, M.F., Hou, B.Y., Phys. Lett. A 223, 227 (1996) CrossRef
Elabsy, A.M., Physica B 292, 233 (2000) CrossRef
Anemogiannis, E., Glytsis, E.N., Gaylord, T.K., IEEE J. Quantum Elect. 29, 2731 (1993) CrossRef
Wang, H.M., Xu, H.Z., Zhang, Y.F., Phys. Lett. A 355, 481 (2006) CrossRef
P. Harrison, Quantum well wires and dots, 2nd edn. (Wiley, Chichester, 2005)