Title
Effect of dissipation on the ac response of a resonant-tunneling diode Effect of dissipation on the ac response of a resonant-tunneling diode
Author
Publication type
article
Publication
Lancaster, Pa ,
Subject
Physics
Source (journal)
Physical review : B : condensed matter and materials physics. - Lancaster, Pa, 1998 - 2015
Volume/pages
54(1996) :19 , p. 14032-14036
ISSN
1098-0121
1550-235X
ISI
A1996VV26400094
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
The effect of dissipation on the sc linear response of a resonant-tunneling diode is investigated theoretically by applying two well-known models. (i) The featureless phase-breaking model is applied to study the acoustic-phonon scattering, where we show that the phase-breaking process has no significant effect on the ac conductance in the high-temperature limit; phase breaking does have an influence at low temperatures, and we also discuss the characteristic time at zero temperature. (ii) The independent boson model is applied to describe the LO-phonon scattering, where we find a shift for the ac-conductance peak due to the renormalizing effect of the electron LO-phonon interaction on the resonant level and compare the line shape of the renormalized response function with that from the acoustic-phonon scattering. We also study the possibility of probing the emission of LO phonons in the ac response in the limit of zero temperature, and discuss the relevant experimental condition.
E-info
https://repository.uantwerpen.be/docman/iruaauth/7e6e6c/6b42446.pdf
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