DataVXChemistry of MaterialsPaper
journal article·2020-02-11

Hybrid h-BN–Graphene Monolayer with B–C Boundaries on a Lattice-Matched Surface

Kirill A. Bokai, Artem V. Tarasov, Viktor O. Shevelev, Oleg Yu. Vilkov, Anna A. Makarova, Dmitry Marchenko, Anatoly E. Petukhov, Matthias Muntwiler, Alexander V. Fedorov, Vladimir Yu. Voroshnin, Lada V. Yashina, Clemens Laubschat, Denis V. Vyalikh, Dmitry Yu. Usachov

Chemistry of Materials· Volume 32· Issue 3
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Source abstract

Abstract

In-plane heterostructures of hexagonal boron nitride (h-BN) and graphene (Gr) have recently appeared in the focus of material science research owing to their intriguing and tunable electronic properties. However, disclosure of the atomic structure and properties of one-dimensional heterojunctions between Gr and h-BN domains remains a largely unexplored and challenging task. Here, we report an approach to obtain a perfectly oriented and atomically thin hybrid h-BN–Gr heterolayer on the Co(0001) surface. A perfect matching of the lattice parameters ensures an epitaxial growth of both Gr and h-BN on the close-packed Co surface. High crystalline quality of the resulting interface allowed us to uncover the structural and electronic properties of the lateral h-BN/Gr heterojunctions by means of complementary microscopic and spectroscopic techniques. In particular, we established the coexistence of two types of zigzag boundaries made of B–C bonds, while the boundaries with N–C bonds were found to be unfavorable. Observation of spin-polarized edge states at the C-zigzag edges of Gr domains allowed us to determine the atomic structure of C-BN heterojunctions with scanning tunneling microscopy.
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Research context

Nanomaterials

OpenAlex topics: Graphene research and applications · Quantum and electron transport phenomena · Surface and Thin Film Phenomena

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

St. Petersburg State University, 7/9 Universitetskaya nab., 199034 St. Petersburg, Russia

Institute of Solid State Chemistry of the Ural Branch of the Russian Academy of Sciences, Pervomayskaya Str. 91, 620990 Ekaterinburg, Russia

Institut für Festkörper- und Materialphysik, Technische Universität Dresden, 01062 Dresden, Germany

Physikalische Chemie, Institut für Chemie und Biochemie, Freie Universität Berlin, Arnimalle 22, 14195 Berlin, Germany

Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Str. 15, 12489 Berlin, Germany

Paul Scherrer Institut, 5232 Villigen, Switzerland

Leibniz Institute for Solid State and Materials Research IFW Dresden, 01069 Dresden, Germany

M.V. Lomonosov Moscow State University, Leninskie Gory 1/3, 119991 Moscow, Russia

Semenov Institute of Chemical Physics RAS, Kosygina Street 4, Building 1, 119991 Moscow, Russia

Donostia International Physics Center (DIPC), 20018 Donostia/San Sebastián, Basque Country, Spain

IKERBASQUE, Basque Foundation for Science, 48011 Bilbao, Spain

Funding

Bundesministerium f??r Bildung und Forschung · Russian Science Foundation · Deutsche Forschungsgemeinschaft · German-Russian Interdisciplinary Science Center · ???????????????????? ???????? ?????????????????????????????? ???????????????????????? (????????) · Saint Petersburg State University

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