Single electron pumping through a quantum dot-embedded carbon nanotube using surface acoustic wave

Bum Kyu Kim; Ju Jin Kim; Minky Seo; Yunchul Chung; Byung Chil Woo; Jinhee Kim; Woon Song; Nam Kim

doi:10.1063/1.3532852

Single electron pumping through a quantum dot-embedded carbon nanotube using surface acoustic wave

Bum Kyu Kim^*
, Ju Jin Kim
, Minky Seo
, Yunchul Chung
, Byung Chil Woo
, Jinhee Kim
, Woon Song
, Nam Kim

^*Corresponding author for this work

Department of Physics

Korea Research Institute of Standards and Science
Jeonbuk National University
Pusan National University

Research output: Contribution to journal › Journal article › peer-review

3 Scopus citations

Abstract

We have studied acoustoelectric current through a quantum dot-embedded carbon nanotube induced by a surface acoustic wave. The measurements were carried out on a same device but in two very different quantum dot charging energy E_c regimes (∼50 and ∼5 meV). The results showed dramatic differences in induced acoustoelectric current depending on E _c. The induced acoustoelectric current showed a polarity reversal around the Coulomb blockade peak when E_c is small (5 meV). For a large E_c (50 meV), however, a current plateau was observed as a function of surface acoustic wave powers as well as gate voltages.

Original language	English
Article number	262110
Journal	Applied Physics Letters
Volume	97
Issue number	26
DOIs	https://doi.org/10.1063/1.3532852
State	Published - 2010.12.27

Quacquarelli Symonds(QS) Subject Topics

Physics & Astronomy

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10.1063/1.3532852

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title = "Single electron pumping through a quantum dot-embedded carbon nanotube using surface acoustic wave",

abstract = "We have studied acoustoelectric current through a quantum dot-embedded carbon nanotube induced by a surface acoustic wave. The measurements were carried out on a same device but in two very different quantum dot charging energy Ec regimes (∼50 and ∼5 meV). The results showed dramatic differences in induced acoustoelectric current depending on E c. The induced acoustoelectric current showed a polarity reversal around the Coulomb blockade peak when Ec is small (5 meV). For a large Ec (50 meV), however, a current plateau was observed as a function of surface acoustic wave powers as well as gate voltages.",

author = "Kim, \{Bum Kyu\} and Kim, \{Ju Jin\} and Minky Seo and Yunchul Chung and Woo, \{Byung Chil\} and Jinhee Kim and Woon Song and Nam Kim",

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T1 - Single electron pumping through a quantum dot-embedded carbon nanotube using surface acoustic wave

AU - Kim, Bum Kyu

AU - Kim, Ju Jin

AU - Seo, Minky

AU - Chung, Yunchul

AU - Woo, Byung Chil

AU - Kim, Jinhee

AU - Song, Woon

AU - Kim, Nam

PY - 2010/12/27

Y1 - 2010/12/27

N2 - We have studied acoustoelectric current through a quantum dot-embedded carbon nanotube induced by a surface acoustic wave. The measurements were carried out on a same device but in two very different quantum dot charging energy Ec regimes (∼50 and ∼5 meV). The results showed dramatic differences in induced acoustoelectric current depending on E c. The induced acoustoelectric current showed a polarity reversal around the Coulomb blockade peak when Ec is small (5 meV). For a large Ec (50 meV), however, a current plateau was observed as a function of surface acoustic wave powers as well as gate voltages.

AB - We have studied acoustoelectric current through a quantum dot-embedded carbon nanotube induced by a surface acoustic wave. The measurements were carried out on a same device but in two very different quantum dot charging energy Ec regimes (∼50 and ∼5 meV). The results showed dramatic differences in induced acoustoelectric current depending on E c. The induced acoustoelectric current showed a polarity reversal around the Coulomb blockade peak when Ec is small (5 meV). For a large Ec (50 meV), however, a current plateau was observed as a function of surface acoustic wave powers as well as gate voltages.

UR - https://www.scopus.com/pages/publications/78650906001

U2 - 10.1063/1.3532852

DO - 10.1063/1.3532852

M3 - Journal article

AN - SCOPUS:78650906001

SN - 0003-6951

VL - 97

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 26

M1 - 262110

ER -

Single electron pumping through a quantum dot-embedded carbon nanotube using surface acoustic wave

Abstract

Quacquarelli Symonds(QS) Subject Topics

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