The gate bias dependent evolution of the Coulomb oscillations in a silicon-on-insulator nanowire transistor is reported. Transport data obtained for a wide range of front- and back-gate bias strongly suggest that multiple quantum dots (QDs) with different potential depths are formed in the nano-wire channel. Our data can be clearly interpreted as arising from the turning on or off of one of these QDs as the back-gate bias is varied. Quantitative calculation based on the model of single-electron tunneling through two parallel QDs is in reasonable agreement with the measured data in the back-gate bias range where the third dot is not activated. (C) 2004 Elsevier Ltd. All rights reserved.
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Wuhan Inst Technol, Engn Res Ctr Environm Mat & Membrane Technol Hubei, Sch Mat Sci & Engn, Wuhan 430073, Hubei, Peoples R China
Foshan Southern China Inst New Mat, Foshan 528200, Guangdong, Peoples R ChinaWuhan Inst Technol, Engn Res Ctr Environm Mat & Membrane Technol Hubei, Sch Mat Sci & Engn, Wuhan 430073, Hubei, Peoples R China
Zhu, Li
Wang, Wei
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Wuhan Inst Technol, Engn Res Ctr Environm Mat & Membrane Technol Hubei, Sch Mat Sci & Engn, Wuhan 430073, Hubei, Peoples R ChinaWuhan Inst Technol, Engn Res Ctr Environm Mat & Membrane Technol Hubei, Sch Mat Sci & Engn, Wuhan 430073, Hubei, Peoples R China
Wang, Wei
Zhao, Pei
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Wuhan Inst Technol, Engn Res Ctr Environm Mat & Membrane Technol Hubei, Sch Mat Sci & Engn, Wuhan 430073, Hubei, Peoples R ChinaWuhan Inst Technol, Engn Res Ctr Environm Mat & Membrane Technol Hubei, Sch Mat Sci & Engn, Wuhan 430073, Hubei, Peoples R China
Zhao, Pei
Wang, Shulin
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Wuhan Inst Technol, Engn Res Ctr Environm Mat & Membrane Technol Hubei, Sch Mat Sci & Engn, Wuhan 430073, Hubei, Peoples R ChinaWuhan Inst Technol, Engn Res Ctr Environm Mat & Membrane Technol Hubei, Sch Mat Sci & Engn, Wuhan 430073, Hubei, Peoples R China
Wang, Shulin
Yang, Kun
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Rensselaer Polytech Inst, Dept Mech Aerosp & Nucl Engn, Troy, NY 12180 USAWuhan Inst Technol, Engn Res Ctr Environm Mat & Membrane Technol Hubei, Sch Mat Sci & Engn, Wuhan 430073, Hubei, Peoples R China
Yang, Kun
Shi, Hebin
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Wuhan Inst Technol, Engn Res Ctr Environm Mat & Membrane Technol Hubei, Sch Mat Sci & Engn, Wuhan 430073, Hubei, Peoples R ChinaWuhan Inst Technol, Engn Res Ctr Environm Mat & Membrane Technol Hubei, Sch Mat Sci & Engn, Wuhan 430073, Hubei, Peoples R China
Shi, Hebin
Xu, Man
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Wuhan Inst Technol, Engn Res Ctr Environm Mat & Membrane Technol Hubei, Sch Mat Sci & Engn, Wuhan 430073, Hubei, Peoples R China
Wuhan Inst Technol, Sch Mat Sci & Engn, Key Lab Green Chem Engn Proc, Minist Educ, Wuhan 430205, Hubei, Peoples R ChinaWuhan Inst Technol, Engn Res Ctr Environm Mat & Membrane Technol Hubei, Sch Mat Sci & Engn, Wuhan 430073, Hubei, Peoples R China
Xu, Man
Dong, Yingchao
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Dalian Univ Technol, Sch Environm Sci & Technol, Key Lab Ind Ecol & Environm Engn, Minist Educ,MOE, Dalian, Liaoning, Peoples R China
Dalian Univ Technol, Sch Environm Sci & Technol, Key Lab Ind Ecol & Environm Engn, Minist Educ,MOE, Dalian 116024, Liaoning, Peoples R ChinaWuhan Inst Technol, Engn Res Ctr Environm Mat & Membrane Technol Hubei, Sch Mat Sci & Engn, Wuhan 430073, Hubei, Peoples R China