Abstract
Expressions for resonance active high-frequency small-signal conductivity and resonance level widths have been derived for asymmetric triple-barrier resonance-tunneling structures with thin high barriers. It is found that if the levels forming a common resonance level have different parities in each of double-barrier structures, the width of the common level and, accordingly, the total conductance of the entire structure may increase manifold for a certain choice of the triple-barrier structure parameters. Consequently, the lifetime of electrons on this level also decreases drastically; hence, the conditions of coherent transport (departure of electrons from the structure without their collision with phonons) can be easily realized.
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Translated from Pis’ma v Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 82, No. 4, 2005, pp. 228–233.
Original Russian Text Copyright © 2005 by Pashkovski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \).
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Pashkovskii, A.B. Parity and abrupt broadening of resonance levels in triple-barrier structures. Jetp Lett. 82, 210–214 (2005). https://doi.org/10.1134/1.2121816
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DOI: https://doi.org/10.1134/1.2121816