@article { ISI:000278344100025,
	title = {Exchange coupling in transition-metal nanoclusters on Cu(001) and Cu(111) surfaces},
	journal = {PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS},
	volume = {247},
	number = {5},
	year = {2010},
	month = {MAY},
	pages = {1187-1196},
	abstract = {We present results of density-functional calculations on the magnetic properties of Cr, Mn, Fe and Co nanoclusters (1-9 atoms large) supported on Cu(001) and Cu(111). The inter-atomic exchange coupling is found to depend on competing mechanisms, namely ferromagnetic double exchange and antiferromagnetic kinetic exchange. Hybridization-induced broadening of the resonances is shown to be important for the coupling strength. The cluster shape is found to affect the coupling via a mechanism that comprises the different orientation of the atomic d-orbitals and the strength of nearest-neighbour hopping. Especially in Fe clusters, a correlation of binding energy and exchange coupling is also revealed. (C) 2010 WILEY-VCH Verlag GmbH \& Co. KGaA, Weinheim},
	issn = {0370-1972},
	doi = {10.1002/pssb.200945535},
	author = {Mavropoulos, Phivos and Lounis, Samir and Bl{\"u}gel, Stefan}
}
