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Erschienen in: Journal of Materials Science 20/2021

12.04.2021 | Electronic materials

Spin-polarized gate-tuned transport property of a four-terminal MoS2 device: a theoretical study

verfasst von: Hong Yu, Yan Shang, Lei Pei, Guiling Zhang, Hong Yan

Erschienen in: Journal of Materials Science | Ausgabe 20/2021

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Abstract

The transport property of a four-terminal MoS2NR/V7(Bz)8 device is computed within the framework of density functional theory combined with the nonequilibrium Green’s function (NEGF) technique. This device is constructed by a MoS2 nanoribbon (MoS2NR) as the source-to-drain channel and a spin-polarized V7(Bz)8 nanowire grafted on the MoS2NR surface as the double gate channel, where the four terminals are all connected to a semi-infinite one-dimensional (1D) Au lead. The transport characteristic is explored by investigating the conductance, currents, local density of states (LDOS), and scattering states. The currents of different leads are dissimilar due to the complex interplay between the four terminals that is otherwise not present in a two-terminal setup. The most interesting feature we articulate is that the induced promising properties including negative differential resistance (NDR) behavior, input/output current switching, as well as spin-polarized lead currents can be fine-tuned by the magnitude of either source bias or gate bias. These features can be utilized in designing multi-terminal nanoelectronic devices.

Graphical abstract

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Metadaten
Titel
Spin-polarized gate-tuned transport property of a four-terminal MoS2 device: a theoretical study
verfasst von
Hong Yu
Yan Shang
Lei Pei
Guiling Zhang
Hong Yan
Publikationsdatum
12.04.2021
Verlag
Springer US
Erschienen in
Journal of Materials Science / Ausgabe 20/2021
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-021-06046-2

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