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Influence of atomic...
Influence of atomic tip structure on the intensity of inelastic tunneling spectroscopy data analyzed by combined scanning tunneling spectroscopy, force microscopy, and density functional theory
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- Okabayashi, Norio (författare)
- University of Regensburg , Germany ; Kanazawa University, Japan
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- Gustafsson, Alexander, 1982- (författare)
- Linnéuniversitetet,Institutionen för fysik och elektroteknik (IFE),Condensed Matter Physics
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- Peronio, Angelo (författare)
- University of Regensburg, Germany
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- Paulsson, Magnus (författare)
- Linnéuniversitetet,Institutionen för fysik och elektroteknik (IFE)
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- Arai, Toyoko (författare)
- Kanazawa University, Japan
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- Giessibl, Franz (författare)
- University of Regensburg, Germany
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(creator_code:org_t)
- 2016
- 2016
- Engelska.
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Ingår i: Physical Review B. - 2469-9950 .- 2469-9969. ; 93:16
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Achieving a high intensity in inelastic scanning tunneling spectroscopy (IETS) is important for precise measurements. The intensity of the IETS signal can vary by up to a factor of 3 for various tips without an apparent reason accessible by scanning tunneling microscopy (STM) alone. Here, we show that combining STM and IETS with atomic force microscopy enables carbon monoxide front-atom identification, revealing that high IETS intensities for CO/Cu(111) are obtained for single-atom tips, while the intensity drops sharply for multiatom tips. Adsorption of the CO molecule on a Cu adatom [CO/Cu/Cu(111)] such that the molecule is elevated over the substrate strongly diminishes the tip dependence of IETS intensity, showing that an elevated position channels most of the tunneling current through the CO molecule even for multiatom tips, while a large fraction of the tunneling current bypasses the CO molecule in the case of CO/Cu(111).
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Nyckelord
- Electrotechnology
- Elektroteknik alt Electrical engineering
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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