Artifacts related to tip asymmetry in high-resolution atomic force microscopy and scanning tunneling microscopy measurements of graphitic surfaces
dc.citation.epage | 031802-6 | en_US |
dc.citation.issueNumber | 3 | en_US |
dc.citation.spage | 31802 | en_US |
dc.citation.volumeNumber | 33 | en_US |
dc.contributor.author | Uluutku, B. | en_US |
dc.contributor.author | Baykara, M. Z. | en_US |
dc.date.accessioned | 2016-02-08T09:54:34Z | |
dc.date.available | 2016-02-08T09:54:34Z | |
dc.date.issued | 2015 | en_US |
dc.department | Department of Mechanical Engineering | en_US |
dc.department | Institute of Materials Science and Nanotechnology (UNAM) | en_US |
dc.description.abstract | The effect of tip asymmetry on atomic-resolution scanning tunneling microscopy and atomic force microscopy measurements of graphitic surfaces has been investigated via numerical simulations. Employing a three-dimensional, crystalline, metallic tip apex and a two-layer thick graphene sample as a model system, basic calculations of the tip-sample interaction have revealed a significant effect of tip asymmetry on obtained results, including artificial modulation of site-specific chemical interaction forces and spatial distortion of observed features. Related artifacts are shown to be enhanced for tips with low lateral stiffness values. Our results emphasize that potentially erroneous interpretations of atomic-scale surface properties via imaging and spectroscopy measurements can be caused or enhanced by tip asymmetry. | en_US |
dc.description.provenance | Made available in DSpace on 2016-02-08T09:54:34Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 70227 bytes, checksum: 26e812c6f5156f83f0e77b261a471b5a (MD5) Previous issue date: 2015 | en_US |
dc.identifier.doi | 10.1116/1.4915898 | en_US |
dc.identifier.issn | 2166-2746 | |
dc.identifier.uri | http://hdl.handle.net/11693/22037 | |
dc.language.iso | English | en_US |
dc.publisher | American Institute of Physics Inc. | en_US |
dc.relation.isversionof | http://dx.doi.org/10.1116/1.4915898 | en_US |
dc.source.title | Journal of Vacuum Science and Technology. Part B. Nanotechnology & Microelectronics | en_US |
dc.subject | Scanning tunneling microscopy | en_US |
dc.subject | Artificial modulation | en_US |
dc.subject | Chemical interactions | en_US |
dc.subject | High resolution | en_US |
dc.subject | Lateral stiffness | en_US |
dc.subject | Measurements of | en_US |
dc.subject | Spatial distortion | en_US |
dc.subject | Spectroscopy measurements | en_US |
dc.subject | Tip-sample interaction | en_US |
dc.subject | Atomic force microscopy | en_US |
dc.title | Artifacts related to tip asymmetry in high-resolution atomic force microscopy and scanning tunneling microscopy measurements of graphitic surfaces | en_US |
dc.type | Article | en_US |
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