Peculiar Magnetotransport Features of Ultranarrow Graphene Nanoribbons under High Magnetic Field
| Autor: | Xinran Wang, Walter Escoffier, Haoliang Shen, Yi Shi, Bertrand Raquet, Alessandro Cresti |
|---|---|
| Přispěvatelé: | Laboratoire national des champs magnétiques intenses - Toulouse (LNCMI-T), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Institut de Microélectronique, Electromagnétisme et Photonique - Laboratoire d'Hyperfréquences et Caractérisation (IMEP-LAHC ), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Nanjing University of Science and Technology (NJUST), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]) |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Materials science
quasi-1D system General Physics and Astronomy 02 engineering and technology Carbon nanotube Quantum Hall effect 01 natural sciences graphene nanoribbon law.invention quantum Hall effect Quantization (physics) law electronic transport 0103 physical sciences General Materials Science 010306 general physics Condensed matter physics Graphene Bilayer long-range impurity scattering General Engineering 021001 nanoscience & nanotechnology Magnetic field [PHYS.COND.CM-S]Physics [physics]/Condensed Matter [cond-mat]/Superconductivity [cond-mat.supr-con] Zigzag 0210 nano-technology magnetotransport Graphene nanoribbons |
| Zdroj: | ACS Nano ACS Nano, American Chemical Society, 2016, 10 (2), pp.1853. ⟨10.1021/acsnano.5b05478⟩ ACS Nano, 2016, 10 (2), pp.1853. ⟨10.1021/acsnano.5b05478⟩ |
| ISSN: | 1936-0851 |
| DOI: | 10.1021/acsnano.5b05478⟩ |
| Popis: | International audience; Through magnetotransport measurements, we investigate ultrasmooth graphene bilayer nanoribbons obtained by multiwall carbon nanotube unzipping, under a high magnetic field up to 55 T. The high quality of the samples allows us to observe a Hall quantization in ribbons as narrow as 20 nm. The presence, for certain samples, of isolated peaks in the resistance plateau is found to be related to a very moderate long-range disorder, which induces magnetic-field-dependent interedge scattering. Tight-binding numerical simulations of electron transport illustrate and confirm this picture. Our study provides important insights into the quantum Hall effect in quasi-1D systems and indicates possible lines for future investigations of the nonchiral edge states induced by zigzag nanoribbon sections. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|