Exchange engineering in 3d chains adsorbed on Cu$_2$N/Cu(001)
  Covalent substrates can give rise to a variety of magnetic interaction mechanisms among adsorbed transition metal atoms building atomic nanostructures. We show this by calculating the ground state magnetic configuration of monoatomic 3d chains deposited on a monolayer of Cu$_2$N grown on Cu(001) as a function of $d$ filling and of adsorption sites of the one dimensional nanostructures. 
M.C. Urdaniz, M.A. Barral and A.M. Llois
cond-mat.mtrl-sci