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Title: Non-Relativistic Formalism of Resonant Tunneling in the Semiconductor Superlattices
Authors: Bhattacharya, S.P
Sinha, S
Keywords: Multibarrier resonant tunneling
Transmission Coefficient
Tunneling Lifetime
Group velocity
Traversal Time
Issue Date: 2008
Publisher: Vidyasagar University , Midnapore , West-Bengal , India
Series/Report no.: Journal of Physical Science;Vol 12 [2008]
Abstract: Theoretical investigations of non-relativistic mechanism is explored for the determination of transmission coefficient across a multibarrier GaAs-AlyGa1-yAs heterostructure for the entire energy range of ε 〈 V0 , 0 ε = V and 0 ε 〉 V . The resonant tunneling states are also determined. The effect of number of barriers and number of cells in the well and barrier regions on the resonant energies are studied in detail. We have computed resonant tunneling lifetime, group-velocity and traversal time of electrons tunneled through the multibarrier system. The results obtained reveal that the electrons in the higher bands corresponding to resonant energies could tunnel out faster than those electrons in the lower band. Furthermore, the presence of an additional resonant peak in resonant energy spectrum indicated the presence of a new surface state in the multibarrier system.
Description: 239-248
ISSN: 0972-8791 (Print)
Appears in Collections:Journal of Physical Sciences Vol.12 [2008]

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