Quantum pumping of valley current in strain engineered graphene

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

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Original languageEnglish
Article number13105
Journal / PublicationApplied Physics Letters
Volume104
Issue number1
Publication statusPublished - 6 Jan 2014

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Publisher's Copyright Statement
  • COPYRIGHT TERMS OF DEPOSITED FINAL PUBLISHED VERSION FILE: This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Jing Wang, K. S. Chan, and Zijing Lin , "Quantum pumping of valley current in strain engineered graphene", Appl. Phys. Lett. 104, 013105 (2014) and may be found at https://doi.org/10.1063/1.4861119.
Link to Scopus https://www.scopus.com/record/display.uri?eid=2-s2.0-84892146581&origin=recordpage
Permanent Link https://scholars.cityu.edu.hk/en/publications/publication(50440aa9-37ad-4593-857c-c2c6f4a18cc1).html

Abstract

We studied the generation of valley dependent current by adiabatic quantum pumping in monolayer graphene in the presence of electric potential barriers, ferromagnetic field and strain. The pumped currents in the two valleys have same magnitudes and opposite directions; thus, a pure valley current is generated. The oscillation of the pumped pure valley current is determined by the Fabry-Perot resonances formed in the structure. In our calculation, the pumped pure valley current can be as high as 50 nA, which is measurable using present technologies. The proposed device is useful for the development of graphene valleytronic devices. © 2014 AIP Publishing LLC.

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100
Graphene Material Science
100
Quantum Pumping Keyphrases
100
Valley Current Keyphrases
100
Strain Engineering Keyphrases
100
strains INIS
100
valleys INIS
100
pumping INIS
100
graphene INIS
66
Devices Material Science
33
Monolayers Material Science
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[ RIS ] [ BibTeX ]
Quantum pumping of valley current in strain engineered graphene. / Wang, Jing; Chan, K. S.; Lin, Zijing.
In: Applied Physics Letters, Vol. 104, No. 1, 13105, 06.01.2014.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

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