A possible source of spin-polarized electrons: The inert graphene/Ni(111) system

被引：125

作者：

Dedkov, Yu. S. ^{[1
]}

Fonin, M. ^{[2
]}

Laubschat, C. ^{[1
]}

机构：

[1] Tech Univ Dresden, Inst Festkorperphys, D-01062 Dresden, Germany

[2] Univ Konstanz, Fachbereich Phys, D-78457 Constance, Germany

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 05期

关键词：

D O I：

10.1063/1.2841809

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on an investigation of spin-polarized secondary electron emission from the chemically inert system: graphene/Ni(111). An ordered passivation graphene layer (monolayer of graphite) was formed on Ni(111) surface via cracking of propylene gas. The spin polarization of secondary electrons obtained from this system upon photoemission is only slightly lower than the one from the clean Ni surface but does not change upon large oxygen exposure. These results suggest to use such passivated Ni(111) surface as a source of spin-polarized electrons stable against adsorption of reactive gases. (C) 2008 American Institute of Physics.

引用

页数：3

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