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DOI码：10.1021/acs.jpcc.5b10017

发表刊物：J. Phys. Chem. C

摘要：High-temperature-deposited rotated graphene (Gr) on Ni(111) has been investigated by in situ scanning tunneling microscopy and spectroscopy at room temperature. The rotated Gr exhibits weak bonding to the Ni(111) surface, which facilitates formation of Ni2C or a second Gr layer underneath via bulk carbon segregation. Areas of rotated Gr present a bias voltage dependence of the apparent amplitude of Gr superlattice corrugations. We find that Ni2C underneath rotated Gr introduces additional electronic features that vary with the gap resistance, which could be related to an orientation-dependent interaction between Ni2C and Gr. Furthermore, the exposure to oxygen has a significant influence on the local density of states of Gr/Ni2C, other than on Ni(111) covered with nonrotated Gr.

论文类型：期刊论文

文献类型：J

卷号：120

期号：3

页面范围：1546

是否译文：否

收录刊物：SCI

第一作者：Jiaming Song

通讯作者：Wolfgang Kuch

合写作者：Mathias Bernien

合写作者：Chii-Bin Wu