Steiner P.Gnecco E.Krok F.Budzioch J.Walczak L.Konior J.Szymonski M.Meyer E.2020-12-042020-12-042011http://hdl.handle.net/20.500.12614/931enAtribución-NoComercial-SinDerivadas 3.0 EspañaAtomic-scale friction on stepped surfaces of ionic crystalsresearch article10.1103/PhysRevLett.106.186104open access