Removal of Adsorbed Organic Molecules with Scanning Tunneling Microscope : Formate Anions on TiO_2(110) Surface
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概要
- 論文の詳細を見る
A scanning tunneling microscope (STM) operated under ultrahigh vacuum enabled us to eliminate individual formate anions (DCOO^-) adsorbed on a TiO_2(110) surface. When bias voltages of +3.7 V or more were applied on the sample, the formate anions were removed under the STM tip. In contrast, much higher voltages, +5.0 V or more, were required to damage the underlying TiO_2 surface. Thus we could strip off the formate anions in a desired area without damage to the substrate, to create patchworks of uncovered substrate in the monolayer of adsorbed formate anions. The threshold bias voltage for the elimination showed a small dependence on tunneling current, suggesting that the removal process is through field evaporation rather than direct excitation or thermal activation by tunneling electrons
- 社団法人応用物理学会の論文
- 1994-09-15
著者
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Iwasawa Yasuhiro
Department Of Chemistry Graduate School Of Science The University Of Tokyo
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Onishi Hiroshi
Department F Genetic Information Division Of Molecular Life Science School Of Medicine Tokai Univers
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Onishi Hiroshi
Department Of Chemistry Graduate School Of Science The University Of Tokyo
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