Two growth modes of nanostructures near Cu(111) step edges in CoCu and PtCu surface alloys S. A. Dokukin, S. V. Kolesnikov and A. M. Saletsky Eur. Phys. J. B, 95 9 (2022) 161 Published online: 29 September 2022 DOI: 10.1140/epjb/s10051-022-00426-6