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Resonant tunneling time delay and quantum well sheet density (1989)

Bandara, K. M. S. V. ; Coon, D. D. ; Zhao, Hong

[S.l.] : American Institute of Physics (AIP)

Journal of Applied Physics 66 (1989), S. 1227-1230

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ISSN: 1089-7550

Source: AIP Digital Archive

Topics: Physics

Notes: Time delays, dwell times, resonant state lifetimes, and electron sheet densities associated with tunneling through quantum well structures are analyzed from a scattering theory (S-matrix) viewpoint. Some of the results differ from intuitively motivated expressions which have appeared in the resonant tunneling literature. It is shown that the sheet density is given by a formula similar to the Tsu–Esaki formula [Appl. Phys. Lett. 22, 562 (1973)] for current density. Sheet density and dwell time are related to Hermitian matrices which are expressed in terms of the S-matrix and in terms of partial widths associated with resonant states.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.343468

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