dc.identifier.uri |
http://dx.doi.org/10.15488/10587 |
|
dc.identifier.uri |
https://www.repo.uni-hannover.de/handle/123456789/10664 |
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dc.contributor.author |
Karakachian, Hrag
|
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dc.contributor.author |
Nguyen, T.T. Nhung
|
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dc.contributor.author |
Aprojanz, Johannes
|
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dc.contributor.author |
Zakharov, Alexei A.
|
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dc.contributor.author |
Yakimova, Rositsa
|
|
dc.contributor.author |
Rosenzweig, Philipp
|
|
dc.contributor.author |
Polley, Craig M.
|
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dc.contributor.author |
Balasubramanian, Thiagarajan
|
|
dc.contributor.author |
Tegenkamp, Christoph
|
|
dc.contributor.author |
Power, Stephen R.
|
|
dc.contributor.author |
Starke, Ulrich
|
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dc.date.accessioned |
2021-03-23T09:46:12Z |
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dc.date.available |
2021-03-23T09:46:12Z |
|
dc.date.issued |
2020 |
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dc.identifier.citation |
Karakachian, H.; Nguyen, T.T.N.; Aprojanz, J.; Zakharov, A.A.; Yakimova, R. et al.: One-dimensional confinement and width-dependent bandgap formation in epitaxial graphene nanoribbons. In: Nature Communications 11 (2020), Nr. 1, 6380. DOI: https://doi.org/10.1038/s41467-020-19051-x |
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dc.description.abstract |
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. © 2020, The Author(s). |
eng |
dc.language.iso |
eng |
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dc.publisher |
London : Nature Publishing Group |
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dc.relation.ispartofseries |
Nature Communications 11 (2020), Nr. 1 |
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dc.rights |
CC BY 4.0 Unported |
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dc.rights.uri |
https://creativecommons.org/licenses/by/4.0/ |
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dc.subject |
chemical binding |
eng |
dc.subject |
one-dimensional modeling |
eng |
dc.subject |
quantum mechanics |
eng |
dc.subject |
semiconductor industry |
eng |
dc.subject.ddc |
500 | Naturwissenschaften
|
ger |
dc.title |
One-dimensional confinement and width-dependent bandgap formation in epitaxial graphene nanoribbons |
|
dc.type |
Article |
|
dc.type |
Text |
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dc.relation.essn |
2041-1723 |
|
dc.relation.doi |
https://doi.org/10.1038/s41467-020-19051-x |
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dc.bibliographicCitation.issue |
1 |
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dc.bibliographicCitation.volume |
11 |
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dc.bibliographicCitation.firstPage |
6380 |
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dc.description.version |
publishedVersion |
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tib.accessRights |
frei zug�nglich |
|