Impurity-induced magnetic units embedded in ferromagnetic surfaces

Prandolini, M.J.; Manzhur, Y.; Weber, A.; Potzger, K.; Bertschat, H.H.; Ueno, H.; Miyoshi, H.; Dietrich, M.
July 2004
Applied Physics Letters;7/5/2004, Vol. 85 Issue 1, p76
Academic Journal
Induced magnetic properties at isolated nonmagnetic atoms (Cd) attached to ferromagnetic Ni surfaces are found to be independent of the local symmetry and dependent on the number of nearest Ni neighbors. This dominance of coordination-number dependence as opposed to local symmetry could be studied on differently oriented surfaces at constant coordination numbers using perturbed angular correlation spectroscopy. Mediated by the localized sd-electron hybridization, the impurities form zero-dimensional magnetic units with their nearest Ni neighbors. We discuss this finding as basic research toward future applications with self-organizing patterned structures.


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