Random telegraph noise in metallic single-walled carbon nanotubes

Hyun-Jong Chung; Tae-Woo Uhm; Sung-Won Kim; Young-Gyu You; Sang Wook Lee; Sung-Ho Jhang; Eleanor E.B. Campbell; Yung Woo Park

doi:10.1063/1.4876443

Random telegraph noise in metallic single-walled carbon nanotubes

Hyun-Jong Chung, Tae-Woo Uhm, Sung-Won Kim, Young-Gyu You, Sang Wook Lee, Sung-Ho Jhang, Eleanor E.B. Campbell, Yung Woo Park

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

Abstract / Description of output

We have investigated random telegraph noise (RTN) observed in individual metallic carbon nanotubes (CNTs). Mean lifetimes in high- and low-current states, τ_high and τ_low, have been studied as a function of bias-voltage and gate-voltage as well as temperature. By analyzing the statistics and features of the RTN, we suggest that this noise is due to the random transition of defects between two metastable states, activated by inelastic scattering with conduction electrons. Our results indicate an important role of defect motions in the 1/f noise in CNTs.

Original language	English
Article number	193102
Number of pages	4
Journal	Applied Physics Letters
Volume	104
Issue number	19
Early online date	13 May 2014
DOIs	https://doi.org/10.1063/1.4876443
Publication status	Published - 13 May 2014

Keywords / Materials (for Non-textual outputs)

carbon nanotubes
random telegraph noise
activation energies
electric measurements
electrodes

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10.1063/1.4876443

Random telegraph noise in metallic single-walled carbon nanotubes
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http://scitation.aip.org/content/aip/journal/apl/104/19/10.1063/1.4876443

Cite this

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title = "Random telegraph noise in metallic single-walled carbon nanotubes",

abstract = "We have investigated random telegraph noise (RTN) observed in individual metallic carbon nanotubes (CNTs). Mean lifetimes in high- and low-current states, τhigh and τlow, have been studied as a function of bias-voltage and gate-voltage as well as temperature. By analyzing the statistics and features of the RTN, we suggest that this noise is due to the random transition of defects between two metastable states, activated by inelastic scattering with conduction electrons. Our results indicate an important role of defect motions in the 1/f noise in CNTs.",

keywords = "carbon nanotubes, random telegraph noise, activation energies, electric measurements, electrodes",

author = "Hyun-Jong Chung and Tae-Woo Uhm and Sung-Won Kim and Young-Gyu You and Lee, {Sang Wook} and Sung-Ho Jhang and Campbell, {Eleanor E.B.} and Park, {Yung Woo}",

year = "2014",

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doi = "10.1063/1.4876443",

language = "English",

volume = "104",

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T1 - Random telegraph noise in metallic single-walled carbon nanotubes

AU - Chung, Hyun-Jong

AU - Uhm, Tae-Woo

AU - Kim, Sung-Won

AU - You, Young-Gyu

AU - Lee, Sang Wook

AU - Jhang, Sung-Ho

AU - Campbell, Eleanor E.B.

AU - Park, Yung Woo

PY - 2014/5/13

Y1 - 2014/5/13

N2 - We have investigated random telegraph noise (RTN) observed in individual metallic carbon nanotubes (CNTs). Mean lifetimes in high- and low-current states, τhigh and τlow, have been studied as a function of bias-voltage and gate-voltage as well as temperature. By analyzing the statistics and features of the RTN, we suggest that this noise is due to the random transition of defects between two metastable states, activated by inelastic scattering with conduction electrons. Our results indicate an important role of defect motions in the 1/f noise in CNTs.

AB - We have investigated random telegraph noise (RTN) observed in individual metallic carbon nanotubes (CNTs). Mean lifetimes in high- and low-current states, τhigh and τlow, have been studied as a function of bias-voltage and gate-voltage as well as temperature. By analyzing the statistics and features of the RTN, we suggest that this noise is due to the random transition of defects between two metastable states, activated by inelastic scattering with conduction electrons. Our results indicate an important role of defect motions in the 1/f noise in CNTs.

KW - carbon nanotubes

KW - random telegraph noise

KW - activation energies

KW - electric measurements

KW - electrodes

U2 - 10.1063/1.4876443

DO - 10.1063/1.4876443

M3 - Letter

SN - 0003-6951

VL - 104

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 19

M1 - 193102

ER -

Random telegraph noise in metallic single-walled carbon nanotubes

Abstract / Description of output

Keywords / Materials (for Non-textual outputs)

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