Home > Publications database > Exchange coupling in transition-metal nanoclusters on Cu(001) and Cu(111) surfaces > print |
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024 | 7 | _ | |2 DOI |a 10.1002/pssb.200945535 |
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024 | 7 | _ | |2 ISSN |a 0370-1972 |
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084 | _ | _ | |2 WoS |a Physics, Condensed Matter |
100 | 1 | _ | |a Mavropoulos, Ph. |b 0 |u FZJ |0 P:(DE-Juel1)130823 |
245 | _ | _ | |a Exchange coupling in transition-metal nanoclusters on Cu(001) and Cu(111) surfaces |
260 | _ | _ | |c 2010 |a Weinheim |b Wiley-VCH |
300 | _ | _ | |a 1187 - 1196 |
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440 | _ | 0 | |a PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS |x 0370-1972 |0 4914 |y 5 |v |
500 | _ | _ | |a We are indebted to Ondrej Sipr for sending us detailed results on the Co/Au and Co/Pt systems, and to Peter Dederichs and Yuriy Molcrousov for enlightening discussions. Financial support from the Deutsche Forschungsgemeinschaft (DFG), within the Priority Programme 'Clusters in contact with surfaces: electronic structure and magnetism' (SPP-1153), is gratefully acknowledged. |
520 | _ | _ | |a 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 |
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700 | 1 | _ | |a Blügel, S. |b 2 |u FZJ |0 P:(DE-Juel1)130548 |
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