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Título: | Boron nitride monolayer growth on vicinal Ni(1 1 1) surfaces systematically studied with a curved crystal |
Autor: | Fernández, Laura CSIC ORCID; Makarova, Anna A.; Laubschat, Clemens; Vyalikh, Denis V. CSIC ORCID; Usachov, Dmitry Yu.; Ortega, J. Enrique CSIC ORCID; Schiller, Frederik CSIC ORCID | Palabras clave: | Curved crystal Faceting hBN monolayer Vicinal Ni(1 1 1) surface |
Fecha de publicación: | 8-feb-2019 | Editor: | IOP Publishing | Citación: | 2D Materials 6(2): 025013 (2019) | Resumen: | The structural and electronic properties of hexagonal boron nitride (hBN) grown on stepped Ni surfaces are systematically investigated using a cylindrical Ni crystal as a tunable substrate. Our experiments reveal homogeneous hBN monolayer coating of the entire Ni curved surface, which in turn undergoes an overall faceting. The faceted system is defined by step-free hBN/Ni(1 1 1) terraces alternating with strongly tilted hBN/Ni(1 1 5) or hBN/Ni(1 1 0) nanostripes, depending on whether we have A-type or B-type vicinal surfaces, respectively. Such deep substrate self-organization is explained by both the rigidity of the hBN lattice and the lack of registry with Ni crystal planes in the vicinity of the (1 1 1) surface. The analysis of the electronic properties by photoemission and absorption spectroscopies reveal a weaker hBN/Ni interaction in (1 1 0)- and (1 1 5)-oriented facets, as well as an upward shift of the valence band with respect to the band position at the hBN/Ni(1 1 1) terrace. | Versión del editor: | http://dx.doi.org/10.1088/2053-1583/ab01e7 | URI: | http://hdl.handle.net/10261/203143 | DOI: | 10.1088/2053-1583/ab01e7 | Identificadores: | doi: 10.1088/2053-1583/ab01e7 issn: 2053-1583 |
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