Voltage controlled switches with ultrahigh GOn/GOff ratio on single layer graphene

Huaizhe Xu; Sheng Feng; Yaping Zhang

doi:10.1016/j.jmmm.2018.10.097

Voltage controlled switches with ultrahigh G_On/G_Off ratio on single layer graphene

Huaizhe Xu, Sheng Feng, Yaping Zhang

Department of Electrical and Electronic Engineering

Research output: Journal Publication › Article › peer-review

Abstract

A method for realizing voltage-controlled conductance switching using single layer graphene is proposed and numerically studied and presented. The ultrahigh conductance On/Off ratio (G_On/G_Off) is achieved through the “closing/opening” of an energy bandgap in single layer graphene. The G_On/G_Off reaches as high as ∼152 when the bandgap is of only ∼12 meV (B = 3) for the simulated device configuration. Furthermore, the G_On/G_Off ratio increases parabolically with the increasing of the product of U and d (i.e. U∗d) and increases exponentially with the increasing of the product of B and b (i.e. B∗b). In addition, the G_On/G_Off ratio increases with the increasing of the unit cell number N of the device. These features of merit provide ways for the optimization of the performance and properties of the switch.

Original language	English
Pages (from-to)	365-369
Number of pages	5
Journal	Journal of Magnetism and Magnetic Materials
Volume	473
DOIs	https://doi.org/10.1016/j.jmmm.2018.10.097
Publication status	Published - 1 Mar 2019

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1016/j.jmmm.2018.10.097

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title = "Voltage controlled switches with ultrahigh GOn/GOff ratio on single layer graphene",

abstract = "A method for realizing voltage-controlled conductance switching using single layer graphene is proposed and numerically studied and presented. The ultrahigh conductance On/Off ratio (GOn/GOff) is achieved through the “closing/opening” of an energy bandgap in single layer graphene. The GOn/GOff reaches as high as ∼152 when the bandgap is of only ∼12 meV (B = 3) for the simulated device configuration. Furthermore, the GOn/GOff ratio increases parabolically with the increasing of the product of U and d (i.e. U∗d) and increases exponentially with the increasing of the product of B and b (i.e. B∗b). In addition, the GOn/GOff ratio increases with the increasing of the unit cell number N of the device. These features of merit provide ways for the optimization of the performance and properties of the switch.",

author = "Huaizhe Xu and Sheng Feng and Yaping Zhang",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

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doi = "10.1016/j.jmmm.2018.10.097",

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T1 - Voltage controlled switches with ultrahigh GOn/GOff ratio on single layer graphene

AU - Xu, Huaizhe

AU - Feng, Sheng

AU - Zhang, Yaping

PY - 2019/3/1

Y1 - 2019/3/1

N2 - A method for realizing voltage-controlled conductance switching using single layer graphene is proposed and numerically studied and presented. The ultrahigh conductance On/Off ratio (GOn/GOff) is achieved through the “closing/opening” of an energy bandgap in single layer graphene. The GOn/GOff reaches as high as ∼152 when the bandgap is of only ∼12 meV (B = 3) for the simulated device configuration. Furthermore, the GOn/GOff ratio increases parabolically with the increasing of the product of U and d (i.e. U∗d) and increases exponentially with the increasing of the product of B and b (i.e. B∗b). In addition, the GOn/GOff ratio increases with the increasing of the unit cell number N of the device. These features of merit provide ways for the optimization of the performance and properties of the switch.

AB - A method for realizing voltage-controlled conductance switching using single layer graphene is proposed and numerically studied and presented. The ultrahigh conductance On/Off ratio (GOn/GOff) is achieved through the “closing/opening” of an energy bandgap in single layer graphene. The GOn/GOff reaches as high as ∼152 when the bandgap is of only ∼12 meV (B = 3) for the simulated device configuration. Furthermore, the GOn/GOff ratio increases parabolically with the increasing of the product of U and d (i.e. U∗d) and increases exponentially with the increasing of the product of B and b (i.e. B∗b). In addition, the GOn/GOff ratio increases with the increasing of the unit cell number N of the device. These features of merit provide ways for the optimization of the performance and properties of the switch.

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JO - Journal of Magnetism and Magnetic Materials

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Voltage controlled switches with ultrahigh G_On/G_Off ratio on single layer graphene

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