Anomalous Corrugation Height of Atomically Resolved AFM Images of a Graphite Surface
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- Sugawara Yasuhiro
- Department of Electronic Engineering, Faculty of Engineering, Iwate University
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- Ishizaka Tatsuya
- Research Institute of Electrical Communication, Tohoku University
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- Morita Seizo
- Department of Physics, Faculty of Science, Hiroshima University
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- Imai Syozo
- Research Institute of Electrical Communication, Tohoku University
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- Mikoshiba Nobuo
- Research Institute of Electrical Communication, Tohoku University
抄録
To clarify the origin of the anomalous corrugation height of atomically resolved AFM images of graphite under strong repulsive (contact) force, we carefully investigated the variation of the force between the lever and a graphite surface during lateral scans. For a weak repulsive force (∼1.3×10−7 N), the variation of the force was rather smooth, where the deduced corrugation heights were ∼0.2 Å. On the other hand, for a strong repulsive force (∼2.2×10−6 N), the variation of the force was spikelike, where the maximum corrugation heights of ∼1.7 Å were determined. We also found that the direction of the spikelike force modulation depends on the scanning direction of the sample. Observed variation of the force seems to be evidence that this anomalous large corrugation height of ∼1.7 Å is induced by the stick slip motion between the lever and a graphite surface.
収録刊行物
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- Japanese Journal of Applied Physics
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Japanese Journal of Applied Physics 29 (3), L502-L504, 1990
公益社団法人 応用物理学会
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詳細情報 詳細情報について
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- CRID
- 1570572703214339584
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- NII論文ID
- 130003470233
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- ISSN
- 00214922
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- 本文言語コード
- en
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- データソース種別
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