First-principles approach to the electron transport and applications for devices based on carbon nanotubes and ultrathin oxides

Yong Ju Kang; Joongoo Kang; Yong Hoon Kim; Kee Joo Chang

doi:10.1016/j.cpc.2007.02.031

First-principles approach to the electron transport and applications for devices based on carbon nanotubes and ultrathin oxides

Yong Ju Kang, Joongoo Kang, Yong Hoon Kim, Kee Joo Chang

Department of Physics and Chemistry

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

4 Scopus citations

Abstract

We use a first-principles computational scheme to study the transport properties of devices based on telescoping carbon nanotubes. The transmission function is calculated through the matrix Green's function method using a Gaussian basis set. Varying the overlap region of the two nanotubes, we compare the effect of interwall interactions on the transport characteristics with that obtained from a simple tight-binding model. The leakage current through ultrathin gate oxides is also studied for various Si/SiO₂ interface models, which are manipulated by varying oxide thickness and crystal phase.

Original language	English
Pages (from-to)	30-33
Number of pages	4
Journal	Computer Physics Communications
Volume	177
Issue number	1-2 SPEC. ISS.
DOIs	https://doi.org/10.1016/j.cpc.2007.02.031
State	Published - Jul 2007

Bibliographical note

Funding Information:
This work was supported by the Korea Ministry of Commerce, Industry and Energy and by the Star-Faculty project.

Keywords

Matrix Green's function
Quantum transport

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10.1016/j.cpc.2007.02.031

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title = "First-principles approach to the electron transport and applications for devices based on carbon nanotubes and ultrathin oxides",

abstract = "We use a first-principles computational scheme to study the transport properties of devices based on telescoping carbon nanotubes. The transmission function is calculated through the matrix Green's function method using a Gaussian basis set. Varying the overlap region of the two nanotubes, we compare the effect of interwall interactions on the transport characteristics with that obtained from a simple tight-binding model. The leakage current through ultrathin gate oxides is also studied for various Si/SiO2 interface models, which are manipulated by varying oxide thickness and crystal phase.",

keywords = "Matrix Green's function, Quantum transport",

author = "Kang, {Yong Ju} and Joongoo Kang and Kim, {Yong Hoon} and Chang, {Kee Joo}",

note = "Funding Information: This work was supported by the Korea Ministry of Commerce, Industry and Energy and by the Star-Faculty project.",

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AU - Kang, Yong Ju

AU - Kang, Joongoo

AU - Kim, Yong Hoon

AU - Chang, Kee Joo

N1 - Funding Information: This work was supported by the Korea Ministry of Commerce, Industry and Energy and by the Star-Faculty project.

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AB - We use a first-principles computational scheme to study the transport properties of devices based on telescoping carbon nanotubes. The transmission function is calculated through the matrix Green's function method using a Gaussian basis set. Varying the overlap region of the two nanotubes, we compare the effect of interwall interactions on the transport characteristics with that obtained from a simple tight-binding model. The leakage current through ultrathin gate oxides is also studied for various Si/SiO2 interface models, which are manipulated by varying oxide thickness and crystal phase.

KW - Matrix Green's function

KW - Quantum transport

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JO - Computer Physics Communications

JF - Computer Physics Communications

IS - 1-2 SPEC. ISS.

ER -

First-principles approach to the electron transport and applications for devices based on carbon nanotubes and ultrathin oxides

Abstract

Bibliographical note

Keywords

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