Jesse Balgley, Jackson Butler, Sananda Biswas, Zhehao Ge, Samuel LaGasse, Takashi Taniguchi, Kenji Watanabe, Matthew Cothrine, David G. Mandrus, Jairo Velasco, Roser Valentí, Erik A. Henriksen
- We demonstrate ultra-sharp (≲10 nm) lateral p-n junctions in graphene using electronic transport, scanning tunneling microscopy, and first principles calculations. The p-n junction lies at the boundary between differentially-doped regions of a graphene sheet, where one side is intrinsic and the other is charge-doped by proximity to a flake of α-RuCl3 across a thin insulating barrier. We extract the p-n junction contribution to the device resistance to place bounds on the junction width. We achieve an ultra-sharp junction when the boundary between the intrinsic and doped regions is defined by a cleaved crystalline edge of α-RuCl3 located 2 nm from the graphene. Scanning tunneling spectroscopy in heterostructures of graphene, hexagonal boron nitride, and α-RuCl3 shows potential variations on a sub-10 nm length scale. First principles calculations reveal the charge-doping of graphene decays sharply over just nanometers from the edge of the α-RuCl3 flake.
MetadatenVerfasserangaben: | Jesse BalgleyORCiD, Jackson ButlerORCiD, Sananda BiswasORCiD, Zhehao Ge, Samuel LaGasseORCiD, Takashi TaniguchiORCiD, Kenji WatanabeORCiD, Matthew CothrineORCiD, David G. MandrusORCiD, Jairo VelascoORCiD, Roser ValentíORCiDGND, Erik A. HenriksenORCiD |
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URN: | urn:nbn:de:hebis:30:3-824648 |
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URL: | https://arxiv.org/abs/2203.06295v2 |
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DOI: | https://doi.org/10.48550/arXiv.2203.06295 |
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ArXiv-Id: | http://arxiv.org/abs/2203.06295v2 |
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Titel des übergeordneten Werkes (Englisch): | arXiv |
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Verlag: | arXiv |
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Dokumentart: | Preprint |
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Sprache: | Englisch |
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Datum der Veröffentlichung (online): | 31.05.2022 |
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Datum der Erstveröffentlichung: | 31.05.2022 |
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Veröffentlichende Institution: | Universitätsbibliothek Johann Christian Senckenberg |
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Datum der Freischaltung: | 20.02.2024 |
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Freies Schlagwort / Tag: | density functional theory; electronic transport; graphene; p-n junction; scanning tunneling microscopy; α-RuCl3 |
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Ausgabe / Heft: | 2203.06295 Version 2 |
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Auflage: | Version 2 |
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Seitenzahl: | 36 |
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HeBIS-PPN: | 516989561 |
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Institute: | Physik / Physik |
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DDC-Klassifikation: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
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Sammlungen: | Universitätspublikationen |
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Lizenz (Deutsch): | Creative Commons - Namensnennung 4.0 |
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