Magnetic Shells of Co Clusters
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概要
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IVIagruetic properties of Co y clttster's f'or N : 13 - 147 ?tre discussed by c?tIctrIating the electronicstates ol' the cltusters with tlae local spin-derusity ftrnctiouual rnethod. Two lcinds of' oscillatorybeh?nvior are obserxved in the unagnetisrn of' the Co cltrsters. First, tlae naagnetic tnomeuut per atotnoscillates xvith increasing the cltzster size. This oscillatory size dependence is sitntularted Joy anelectronic shell model, where the discreteness of' the energy levels derixzed froraa 4.s/47t-electronsoriginates the oscilI?ttion. Second, the IOC21[ unatgnetic naoment oscillates f'rona the sturf'ace to thecenter of' the clusters, that is, a 1;xrge raustgnetic tnotaaent ?rt the strrf'ace atoutaic slaell decr'easesat the second slaell. increases at the third shell and again decreases at the fourth shell fronmthe surface. The local density of states of 3d electrons changes shell by shell, parallel to theoscillation of tlae local tnagnetic nuozaaent.
- 社団法人日本物理学会の論文
- 1999-02-15
著者
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Sakurai Shogo
Faculty Of Engineering Shizuoka University
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Fujima Nobuhisa
Faculty Of Engineering Shizuoka University
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