Studies of Charging Effects on Resonant Tunneling Diodes in Terms of Extended Friedel Sum Rule

Takayuki Mizuno; Mikio Eto; Kiyoshi Kawamura

doi:10.1143/JPSJ.65.2594

Studies of Charging Effects on Resonant Tunneling Diodes in Terms of Extended Friedel Sum Rule

Takayuki Mizuno, Mikio Eto, Kiyoshi Kawamura

Department of Physics

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

The Friedel sum rule is extended to express the electron number accumulated within an asymmetric potential well in terms of the phases of transmission and reflection amplitudes of a double-barrier potential, in the presence of a bias voltage and charging effects. It is applied to study non-equilibrium transport properties in asymmetric double-barrier systems. The current-voltage characteristics depends on the sign of the bias voltage, which is caused by the different accumulation of charges in the quantum well. Our self-consistent calculation shows the hysteresis in the current-voltage characteristics which agrees with the experimental observation.

Original language	English
Pages (from-to)	2594-2601
Number of pages	8
Journal	Journal of the Physical Society of Japan
Volume	65
Issue number	8
DOIs	https://doi.org/10.1143/JPSJ.65.2594
Publication status	Published - 1996 Jan 1

Keywords

Asymmetric double-barrier
Charging effect
Friedel sum rule
Intrinsic bistability
Resonant tunneling

ASJC Scopus subject areas

Physics and Astronomy(all)

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abstract = "The Friedel sum rule is extended to express the electron number accumulated within an asymmetric potential well in terms of the phases of transmission and reflection amplitudes of a double-barrier potential, in the presence of a bias voltage and charging effects. It is applied to study non-equilibrium transport properties in asymmetric double-barrier systems. The current-voltage characteristics depends on the sign of the bias voltage, which is caused by the different accumulation of charges in the quantum well. Our self-consistent calculation shows the hysteresis in the current-voltage characteristics which agrees with the experimental observation.",

keywords = "Asymmetric double-barrier, Charging effect, Friedel sum rule, Intrinsic bistability, Resonant tunneling",

author = "Takayuki Mizuno and Mikio Eto and Kiyoshi Kawamura",

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AU - Mizuno, Takayuki

AU - Eto, Mikio

AU - Kawamura, Kiyoshi

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N2 - The Friedel sum rule is extended to express the electron number accumulated within an asymmetric potential well in terms of the phases of transmission and reflection amplitudes of a double-barrier potential, in the presence of a bias voltage and charging effects. It is applied to study non-equilibrium transport properties in asymmetric double-barrier systems. The current-voltage characteristics depends on the sign of the bias voltage, which is caused by the different accumulation of charges in the quantum well. Our self-consistent calculation shows the hysteresis in the current-voltage characteristics which agrees with the experimental observation.

AB - The Friedel sum rule is extended to express the electron number accumulated within an asymmetric potential well in terms of the phases of transmission and reflection amplitudes of a double-barrier potential, in the presence of a bias voltage and charging effects. It is applied to study non-equilibrium transport properties in asymmetric double-barrier systems. The current-voltage characteristics depends on the sign of the bias voltage, which is caused by the different accumulation of charges in the quantum well. Our self-consistent calculation shows the hysteresis in the current-voltage characteristics which agrees with the experimental observation.

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KW - Friedel sum rule

KW - Intrinsic bistability

KW - Resonant tunneling

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