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One-dimensional con...
One-dimensional confinement and width-dependent bandgap formation in epitaxial graphene nanoribbons
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- Karakachian, Hrag (författare)
- Max Planck Inst Festkorperforsch, Germany,Max Planck Institute for Solid State Research
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- Nguyen, T. T. Nhung (författare)
- Tech Univ Chemnitz, Germany,Chemnitz University of Technology
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- Aprojanz, Johannes (författare)
- Tech Univ Chemnitz, Germany; Leibniz Univ Hannover, Germany,Chemnitz University of Technology,Leibniz University of Hannover
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- Zakharov, Alexei A. (författare)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory,Lund Univ, Sweden
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- Yakimova, Rositsa (författare)
- Linköping University,Linköpings universitet,Halvledarmaterial,Tekniska fakulteten
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- Rosenzweig, Philipp (författare)
- Max Planck Inst Festkorperforsch, Germany,Max Planck Institute for Solid State Research
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- Polley, Craig M. (författare)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory,Lund Univ, Sweden
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- Balasubramanian, Thiagarajan (författare)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory,Lund Univ, Sweden
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- Tegenkamp, Christoph (författare)
- Tech Univ Chemnitz, Germany,Chemnitz University of Technology,Leibniz University of Hannover
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- Power, Stephen R. (författare)
- Trinity Coll Dublin, Ireland,Trinity College Dublin
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- Starke, Ulrich (författare)
- Max Planck Inst Festkorperforsch, Germany,Max Planck Institute for Solid State Research
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(creator_code:org_t)
- 2020-12-11
- 2020
- Engelska.
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Ingår i: Nature Communications. - : NATURE RESEARCH. - 2041-1723. ; 11:1
- Relaterad länk:
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https://liu.diva-por... (primary) (Raw object)
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https://www.nature.c...
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http://dx.doi.org/10... (free)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://lup.lub.lu.s...
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Abstract
Ämnesord
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- The ability to define an off state in logic electronics is the key ingredient that is impossible to fulfill using a conventional pristine graphene layer, due to the absence of an electronic bandgap. For years, this property has been the missing element for incorporating graphene into next-generation field effect transistors. In this work, we grow high-quality armchair graphene nanoribbons on the sidewalls of 6H-SiC mesa structures. Angle-resolved photoelectron spectroscopy (ARPES) and scanning tunneling spectroscopy measurements reveal the development of a width-dependent semiconducting gap driven by quantum confinement effects. Furthermore, ARPES demonstrates an ideal one-dimensional electronic behavior that is realized in a graphene-based environment, consisting of well-resolved subbands, dispersing and non-dispersing along and across the ribbons respectively. Our experimental findings, coupled with theoretical tight-binding calculations, set the grounds for a deeper exploration of quantum confinement phenomena and may open intriguing avenues for new low-power electronics. Here, the authors investigate armchair graphene nanoribbons by angle-resolved photoelectron spectroscopy, and show the development of a width-dependent semiconducting gap driven by quantum confinement effects, and an ideal one-dimensional electronic behaviour.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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Karakachian, Hra ...
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Nguyen, T. T. Nh ...
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Aprojanz, Johann ...
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Zakharov, Alexei ...
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Yakimova, Rosits ...
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Rosenzweig, Phil ...
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visa fler...
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Polley, Craig M.
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Balasubramanian, ...
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Tegenkamp, Chris ...
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Power, Stephen R ...
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Starke, Ulrich
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