Graphene nanoribbons on vicinal SiC surfaces by molecular beam epitaxy

Takashi Kajiwara; Yuzuru Nakamori; Anton Visikovskiy; Takushi Iimori; Fumio Komori; Kan Nakatsuji; Kazuhiko Mase; Satoru Tanaka

doi:10.1103/PhysRevB.87.121407

Graphene nanoribbons on vicinal SiC surfaces by molecular beam epitaxy

Takashi Kajiwara, Yuzuru Nakamori, Anton Visikovskiy, Takushi Iimori, Fumio Komori, Kan Nakatsuji, Kazuhiko Mase, Satoru Tanaka

Applied Physics

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

Abstract

We present a method of producing a densely ordered array of epitaxial graphene nanoribbons (GNRs) using vicinal SiC surfaces as a template, which consists of ordered pairs of (0001) terraces and nanofacets. Controlled selective growth of graphene on approximately 10 nm wide (0001) terraces with 10 nm spatial intervals allows GNR formation. By selecting the vicinal direction of SiC substrate, [11̄00], well-ordered GNRs with predominantly armchair edges are obtained. These structures, the high-density GNRs, enable us to observe the electronic structure at K points by angle-resolved photoemission spectroscopy, showing a clear band-gap opening of at least 0.14 eV.

Original language	English
Article number	121407
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	87
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevB.87.121407
Publication status	Published - Mar 21 2013

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.87.121407

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Graphene nanoribbons on vicinal SiC surfaces by molecular beam epitaxy. / Kajiwara, Takashi; Nakamori, Yuzuru; Visikovskiy, Anton; Iimori, Takushi; Komori, Fumio; Nakatsuji, Kan; Mase, Kazuhiko; Tanaka, Satoru.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 87, No. 12, 121407, 21.03.2013.

Research output: Contribution to journal › Article › peer-review

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AU - Mase, Kazuhiko

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Graphene nanoribbons on vicinal SiC surfaces by molecular beam epitaxy

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