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The structural and electronic properties of hexagonal boron nitride (hBN)grown on stepped Ni surfaces are systematically investigated using acylindrical Ni crystal as a tunable substrate. Our experiments revealhomogeneous hBN monolayer coating of the entire Ni curved surface, which inturn undergoes an overall faceting. The faceted system is defined by step-freehBN/Ni(111) terraces alternating with strongly tilted hBN/Ni(115) orhBN/Ni(110) nanostripes, depending on whether we have A-type or B-type vicinalsurfaces, respectively. Such deep substrate self-organization is explained byboth the rigidity of the hBN lattice and the lack of registry with Ni crystalplanes in the vicinity of the (111) surface. The analysis of the electronicproperties by photoemission and absorption spectroscopies reveal a weakerhBN/Ni interaction in (110)- and (115)-oriented facets, as well as an upwardshift of the valence band with respect to the band position at the hBN/Ni(111)terrace.

Boron nitride monolayer growth on vicinal Ni(111) surfaces systematically studied with a curved crystal