Structural parameter dependence of directed current generation in GaAs nanowire-based electron Brownian ratchet devices

Abe, Yushi; Kuroda, Ryota; Ying, Xiang; Sato, Masaki; Tanaka, Takayuki; Kasai, Seiya

doi:10.7567/JJAP.54.06FG02


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Structural parameter dependence of directed current generation in GaAs nanowire-based electron Brownian ratchet devices

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/66632

Title:	Structural parameter dependence of directed current generation in GaAs nanowire-based electron Brownian ratchet devices
Authors:	Abe, Yushi Browse this author
	Kuroda, Ryota Browse this author
	Ying, Xiang Browse this author
	Sato, Masaki Browse this author
	Tanaka, Takayuki Browse this author →KAKEN DB
	Kasai, Seiya Browse this author →KAKEN DB
Issue Date:	Jun-2015
Publisher:	IOP Publishing
Journal Title:	Japanese Journal of Applied Physics(JJAP)
Volume:	54
Issue:	6S1
Start Page:	06FG02
Publisher DOI:	10.7567/JJAP.54.06FG02
Abstract:	We investigated the structural parameter dependence of the directed current in GaAs-nanowire-based Brownian ratchet devices. The directed current was generated by flashing a ratchet potential array repeatedly using multiple asymmetric gates with a periodic signal. The amount of current in the fabricated device increased as the nanowire width W decreased, which contradicted the theoretical model. The current also depended on the number of the gates N, when N was smaller than 6. We discussed the obtained results in terms of the structural parameter dependence of carrier transfer efficiency and the effect of electron reservoirs on current generation in flashing ratchet operation.
Rights:	© 2015 The Japan Society of Applied Physics
Type:	article (author version)
URI:	http://hdl.handle.net/2115/66632
Appears in Collections:	量子集積エレクトロニクス研究センター (Research Center for Integrated Quantum Electronics) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 葛西誠也

OAI-PMH ( junii2 , jpcoar_1.0 )

- Hokkaido University