Transfer Characteristics in Graphene Field-Effect Transistors with Co Contacts

Details Transfer Characteristics in Graphene Field-Effect Transistors with Co Contacts Transfer Characteristics in Graphene Field-Effect Transistors with Co Contacts

2008-10-17

arxiv.org/abs/0810.3057v1

Physics

Condensed Matter

Materials Science

10 pages, 3 figures, Appl. Phys. Lett

Scientific paper

10.1063/1.2998396

Graphene field-effect transistors with Co contacts as source and drain electrodes show anomalous distorted transfer characteristics. The anomaly appears only in short-channel devices (shorter than approximately 3 micrometers) and originates from a contact-induced effect. Band alteration of a graphene channel by the contacts is discussed as a possible mechanism for the anomalous characteristics observed.

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