Presentation 1998/7/21
Fabrication and Characterization of Compound Semiconductor Single Electron Devices Having Novel Gate Structures
Hiroshi Okada, Yoshihiro Sato, Hajime Fujikura, Tamotsu Hashizume, Hideki Hasegawa,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Compound semiconductor based single electron devices having novel gate structures have been proposed and investigated. Schottky wrap gate(WPG) configruation was applied to AlGaAs/GaAs quasi one-dimensional wire to form potential barrier and to control potential of quantum dot within the wire. Single electron transistor(SET) operation as well as the maximum voltage gain larger than unity was achieved in the WPG SET. Furthermore, Schottky WPG controlled SET was succesfully fabricated directly onto an InAlAs/InGaAs/InAlAs ridge quantum wire grown by selective MBE. Fabricated InGaAs WPG SET showed clear Coulomb blockade conductance oscillations up to 30K with Coulomb gap of 10mV. These results indicate the proposed WPG structure is useful to realize compound semiconductor SETs.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) single-electron transistor / Schottky contact / wrap gate / Coulomb blockade / Coulomb staircase / voltage gain
Paper # ED98-78
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Committee ED
Conference Date 1998/7/21(1days)
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Paper Information
Registration To Electron Devices (ED)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Fabrication and Characterization of Compound Semiconductor Single Electron Devices Having Novel Gate Structures
Sub Title (in English)
Keyword(1) single-electron transistor
Keyword(2) Schottky contact
Keyword(3) wrap gate
Keyword(4) Coulomb blockade
Keyword(5) Coulomb staircase
Keyword(6) voltage gain
1st Author's Name Hiroshi Okada
1st Author's Affiliation Research Center for Interface Quantum Electronics and Graduate School of Electronics and Information Engineering, Hokkaido University()
2nd Author's Name Yoshihiro Sato
2nd Author's Affiliation Research Center for Interface Quantum Electronics and Graduate School of Electronics and Information Engineering, Hokkaido University
3rd Author's Name Hajime Fujikura
3rd Author's Affiliation Research Center for Interface Quantum Electronics and Graduate School of Electronics and Information Engineering, Hokkaido University
4th Author's Name Tamotsu Hashizume
4th Author's Affiliation Research Center for Interface Quantum Electronics and Graduate School of Electronics and Information Engineering, Hokkaido University
5th Author's Name Hideki Hasegawa
5th Author's Affiliation Research Center for Interface Quantum Electronics and Graduate School of Electronics and Information Engineering, Hokkaido University
Date 1998/7/21
Paper # ED98-78
Volume (vol) vol.98
Number (no) 184
Page pp.pp.-
#Pages 6
Date of Issue