36 research outputs found

    Unipolar transport in bilayer graphene controlled by multiple p-n interfaces

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    Unipolar transport is demonstrated in a bilayer graphene with a series of p-n junctions and is controlled by electrostatic biasing by a comb-shaped top gate. The OFF state is induced by multiple barriers in the p-n junctions, where the band gap is generated by applying a perpendicular electric field to the bilayer graphene, and the ON state is induced by the p-p or n-n configurations of the junctions. As the number of the junction increases, current suppression in the OFF state is pronounced. The multiple p-n junctions also realize the saturation of the drain current under relatively high source-drain voltages.Comment: 18 pages, 4 figures, Applied Physics Letters, in printin

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    京都大学0048新制・課程博士博士(理学)甲第9075号理博第2375号新制||理||1234(附属図書館)UT51-2001-G795京都大学大学院理学研究科物理学・宇宙物理学専攻(主査)教授 石黒 武彦, 教授 大見 哲巨, 教授 山田 耕作学位規則第4条第1項該当Doctor of ScienceKyoto UniversityDA
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