Origin of current broadening in resonant tunneling via localised states

C. Zhang; D. J. Fisher; S. M. Stewart

doi:10.1016/0039-6028(96)00391-3

Origin of current broadening in resonant tunneling via localised states

C. Zhang, D. J. Fisher, S. M. Stewart

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

4 Citations (Scopus)

Abstract

It is found that in electron resonant tunneling via localised states, the current exhibits a very strong temperature dependence and power nonconservation. This subtle behaviour is due to the impurity states induced tunneling which is subsequently renormalised by an overlap integral of many-electron states in the emitter. By using a temperature-dependent dynamical approach, an analysis of this interesting tunneling process is performed. It is found that the temperature dependence of the current has a very different origin from the thermal activation. It is also found that plasmon excitation in the emitter further renormalises the tunneling current by a factor of two to three orders of magnitude.

Original language	English
Pages (from-to)	231-234
Number of pages	4
Journal	Surface Science
Volume	361-362
DOIs	https://doi.org/10.1016/0039-6028(96)00391-3
Publication status	Published - Jul 20 1996
Externally published	Yes

Keywords

Gallium arsenide
Many-body and quasi-particle theories
Tunneling

ASJC Scopus subject areas

Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

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title = "Origin of current broadening in resonant tunneling via localised states",

abstract = "It is found that in electron resonant tunneling via localised states, the current exhibits a very strong temperature dependence and power nonconservation. This subtle behaviour is due to the impurity states induced tunneling which is subsequently renormalised by an overlap integral of many-electron states in the emitter. By using a temperature-dependent dynamical approach, an analysis of this interesting tunneling process is performed. It is found that the temperature dependence of the current has a very different origin from the thermal activation. It is also found that plasmon excitation in the emitter further renormalises the tunneling current by a factor of two to three orders of magnitude.",

keywords = "Gallium arsenide, Many-body and quasi-particle theories, Tunneling",

author = "C. Zhang and Fisher, {D. J.} and Stewart, {S. M.}",

note = "Funding Information: The authors would like to thank P.E. Simmonds and A.IC Geim for valuable discussions. This work was supported in part by the Australian Research Council.",

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doi = "10.1016/0039-6028(96)00391-3",

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T1 - Origin of current broadening in resonant tunneling via localised states

AU - Zhang, C.

AU - Fisher, D. J.

AU - Stewart, S. M.

N1 - Funding Information: The authors would like to thank P.E. Simmonds and A.IC Geim for valuable discussions. This work was supported in part by the Australian Research Council.

PY - 1996/7/20

Y1 - 1996/7/20

N2 - It is found that in electron resonant tunneling via localised states, the current exhibits a very strong temperature dependence and power nonconservation. This subtle behaviour is due to the impurity states induced tunneling which is subsequently renormalised by an overlap integral of many-electron states in the emitter. By using a temperature-dependent dynamical approach, an analysis of this interesting tunneling process is performed. It is found that the temperature dependence of the current has a very different origin from the thermal activation. It is also found that plasmon excitation in the emitter further renormalises the tunneling current by a factor of two to three orders of magnitude.

AB - It is found that in electron resonant tunneling via localised states, the current exhibits a very strong temperature dependence and power nonconservation. This subtle behaviour is due to the impurity states induced tunneling which is subsequently renormalised by an overlap integral of many-electron states in the emitter. By using a temperature-dependent dynamical approach, an analysis of this interesting tunneling process is performed. It is found that the temperature dependence of the current has a very different origin from the thermal activation. It is also found that plasmon excitation in the emitter further renormalises the tunneling current by a factor of two to three orders of magnitude.

KW - Gallium arsenide

KW - Many-body and quasi-particle theories

KW - Tunneling

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DO - 10.1016/0039-6028(96)00391-3

M3 - Article

AN - SCOPUS:0030189506

VL - 361-362

SP - 231

EP - 234

JO - Surface Science

JF - Surface Science

SN - 0039-6028

ER -

Origin of current broadening in resonant tunneling via localised states

Abstract

Keywords

ASJC Scopus subject areas

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