ISIJ International
Online ISSN : 1347-5460
Print ISSN : 0915-1559
ISSN-L : 0915-1559
Regular Article
Nonstoichiometric Wüstite (001) Surface Exposing Defect Clusters
Yohsuke MasakiTakahiro FujiiMiyuki HayashiKazuhiro Nagata
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2011 Volume 51 Issue 2 Pages 203-207

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Abstract

The (001) surface of nonstoichiometric wüstite (Fe0.94O) grown by the floating zone technique was investigated using STM, LEED and AES. Two distinctive structures, i.e., the dents arrangement and the FeO(001)–c(4×2) reconstructed structure coexist on the terrace after annealing at 1073 K in the ultrahigh vacuum (UHV) system. On the other hand, the only dents exist after annealing at 1273 K. The dent is the Fe vacancy pair in the rocksalt-type FeO(001)–(1×1) matrix, which is the exposed P′ phase of the defect cluster due to nonstoichiometry.

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© 2011 by The Iron and Steel Institute of Japan
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