Oxidation behavior of a Fe/MnO ultrathin film studied by XPS

被引:6
|
作者
Di Castro, V [1 ]
Ciampi, S [1 ]
Sestili, L [1 ]
机构
[1] Univ La Sapienza, Dept Chem, I-00185 Rome, Italy
关键词
D O I
10.1142/S0218625X98000724
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The oxidation of a 9-Angstrom-thick iron layer on MnO at room temperature has been investigated by X-ray photoelectron spectroscopy. By exposure to O-2, iron is oxidized first to Fe(II) and then to Fe(III). During the oxide formation a fast oxygen adsorption and initial oxidation to Fe(II) is followed by a slower oxygen incorporation and Fe(III) formation. After exposure to 1500 L O-2 Fe3O4 seems to be formed at the surface, while the iron lager is not completely oxidized.
引用
收藏
页码:393 / 396
页数:4
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