Structural and Electronic Properties of Cobalt Germanide Islands on Ge(100)

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• 作者：Junghun Choi ; Do Kyung Lim ; Youngwoo Kim ; Sehun Kim
• 刊名：Journal of Physical Chemistry C
• 出版年：2010
• 出版时间：May 20, 2010
• 年：2010
• 卷：114
• 期：19
• 页码：8992-8996
• 全文大小：399K
• 年卷期：v.114,no.19(May 20, 2010)
• ISSN：1932-7455

文摘

The structure and electronic properties of cobalt germanide islands were studied by scanning tunneling microscopy (STM). We found that cobalt-rich surfaces (C-surface) and germanium-rich surfaces (G-surface) coexisted in the islands. Scanning tunneling spectroscopy (STS) confirmed that both surfaces displayed metallic characteristics. Structural models are suggested based on the bias-dependent STM images.