Fe clusters on Ni and Cu: size and shape dependence of the spin moment

Details Fe clusters on Ni and Cu: size and shape dependence of the spin moment Fe clusters on Ni and Cu: size and shape dependence of the spin moment

2004-11-26

arxiv.org/abs/cond-mat/0411644v2

Appl. Phys. A 82, 103-107 (2006).

Physics

Condensed Matter

Materials Science

To be submitted to Appl. Phys. A 2nd version with updated references and improved analysis

Scientific paper

10.1007/s00339-005-3340-z

We present ab-initio calculations of the electronic structure of small Fe clusters (1-9 atoms) on Ni(001), Ni(111), Cu(001) and Cu(111) surfaces. Emphasis is given on the spin moments, and their dependence on cluster size and shape. We derive a simple quantitative rule, which relates the moment of each Fe atom linearly to its coordination number. Thus, for an arbitrary Fe cluster the spin moment of the cluster and of the individual Fe atoms can be readily found if the positions of the atoms are known.

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