What mesoscopic structures really "remember": Insufficiency of the open boundary approximation

Irena Knezevic; David K. Ferry

doi:10.1016/j.spmi.2004.03.029

What mesoscopic structures really "remember": Insufficiency of the open boundary approximation

Irena Knezevic, David K. Ferry

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

4 Scopus citations

Abstract

We analyze the influence of contact electrons on quantum transport in a resonant-tunneling diode (RTD), using a many-body density matrix formalism for open systems. We explicitly relate the net current in the RTD to the memory-containing effective interaction between the RTD active region and the contacts. This effect can only be captured if the RTD active region is treated fully as a dynamically open system.

Original language	English (US)
Pages (from-to)	367-370
Number of pages	4
Journal	Superlattices and Microstructures
Volume	34
Issue number	3-6
DOIs	https://doi.org/10.1016/j.spmi.2004.03.029
State	Published - Sep 2003

Keywords

Open system
Quantum transport
Resonant-tunneling diode

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1016/j.spmi.2004.03.029

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title = "What mesoscopic structures really {"}remember{"}: Insufficiency of the open boundary approximation",

abstract = "We analyze the influence of contact electrons on quantum transport in a resonant-tunneling diode (RTD), using a many-body density matrix formalism for open systems. We explicitly relate the net current in the RTD to the memory-containing effective interaction between the RTD active region and the contacts. This effect can only be captured if the RTD active region is treated fully as a dynamically open system.",

keywords = "Open system, Quantum transport, Resonant-tunneling diode",

author = "Irena Knezevic and Ferry, {David K.}",

note = "Funding Information: The authors wish to thank J.R. Barker and D. Vasileska for useful discussions. Support by the Office of Naval Research is gratefully acknowledged. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.",

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T2 - Insufficiency of the open boundary approximation

AU - Knezevic, Irena

AU - Ferry, David K.

N1 - Funding Information: The authors wish to thank J.R. Barker and D. Vasileska for useful discussions. Support by the Office of Naval Research is gratefully acknowledged. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.

PY - 2003/9

Y1 - 2003/9

N2 - We analyze the influence of contact electrons on quantum transport in a resonant-tunneling diode (RTD), using a many-body density matrix formalism for open systems. We explicitly relate the net current in the RTD to the memory-containing effective interaction between the RTD active region and the contacts. This effect can only be captured if the RTD active region is treated fully as a dynamically open system.

AB - We analyze the influence of contact electrons on quantum transport in a resonant-tunneling diode (RTD), using a many-body density matrix formalism for open systems. We explicitly relate the net current in the RTD to the memory-containing effective interaction between the RTD active region and the contacts. This effect can only be captured if the RTD active region is treated fully as a dynamically open system.

KW - Open system

KW - Quantum transport

KW - Resonant-tunneling diode

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SP - 367

EP - 370

JO - Superlattices and Microstructures

JF - Superlattices and Microstructures

IS - 3-6

ER -

What mesoscopic structures really "remember": Insufficiency of the open boundary approximation

Abstract

Keywords

ASJC Scopus subject areas

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