Surface states of cobalt nanoislands on Cu(111) -: art. no. 236801

被引：146

作者：

Diekhöner, L

Schneider, MA

Baranov, AN

Stepanyuk, VS

Bruno, P

Kern, K

机构：

[1] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany

[2] Univ Halle Wittenberg, Fachbereich Phys, D-06099 Halle An Der Saale, Germany

[3] Max Planck Inst Mikrostrukturphys, D-06120 Halle An Der Saale, Germany

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 90卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.90.236801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The electronic structure of thin Co nanoislands on Cu(111) has been investigated below and above the Fermi level (E-F) by scanning tunneling spectroscopy at low temperature. Two surface related electronic states are found: a strong localized peak 0.31 eV below E-F and a mainly unoccupied dispersive state, giving rise to quantum interference patterns of standing electron waves on the Co surface. Ab initio calculations reveal that the electronic states are spin polarized, originating from d(3z2-r2)-minority and sp-majority bands, respectively.

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页数：4

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