Weak Localization in Graphene: Theory, Simulations, and Experiments
We provide a comprehensive picture of magnetotransport in graphene monolayers in the limit of nonquantizing magnetic fields. We discuss the effects of two-carrier transport, weak localization, weak antilocalization, and strong localization for graphene devices of various mobilities, through theory,...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/737296 |
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| author | Michael Hilke Mathieu Massicotte Eric Whiteway Victor Yu |
| author_facet | Michael Hilke Mathieu Massicotte Eric Whiteway Victor Yu |
| author_sort | Michael Hilke |
| collection | DOAJ |
| description | We provide a comprehensive picture of magnetotransport in graphene monolayers in the limit of nonquantizing magnetic fields. We discuss the effects of two-carrier transport, weak localization, weak antilocalization, and strong localization for graphene devices of various mobilities, through theory, experiments, and numerical simulations. In particular, we observe a minimum in the weak localization and strong localization length reminiscent of the minimum in the conductivity, which allows us to make the connection between weak and strong localization. This provides a unified framework for both localizations, which explains the observed experimental features. We compare these results to numerical simulation and find a remarkable agreement between theory, experiment, and numerics. Various graphene devices were used in this study, including graphene on different substrates, such as glass and silicon, as well as low and high mobility devices. |
| format | Article |
| id | doaj-art-dda7481a6ded415db6e309f43ed93688 |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-dda7481a6ded415db6e309f43ed936882025-08-20T03:26:30ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/737296737296Weak Localization in Graphene: Theory, Simulations, and ExperimentsMichael Hilke0Mathieu Massicotte1Eric Whiteway2Victor Yu3Department of Physics, McGill University, Montreal, QC, H3A 2T8, CanadaInstitute of Photonic Sciences, Castelldefels, 08860 Barcelona, SpainDepartment of Physics, McGill University, Montreal, QC, H3A 2T8, CanadaDepartment of Physics, McGill University, Montreal, QC, H3A 2T8, CanadaWe provide a comprehensive picture of magnetotransport in graphene monolayers in the limit of nonquantizing magnetic fields. We discuss the effects of two-carrier transport, weak localization, weak antilocalization, and strong localization for graphene devices of various mobilities, through theory, experiments, and numerical simulations. In particular, we observe a minimum in the weak localization and strong localization length reminiscent of the minimum in the conductivity, which allows us to make the connection between weak and strong localization. This provides a unified framework for both localizations, which explains the observed experimental features. We compare these results to numerical simulation and find a remarkable agreement between theory, experiment, and numerics. Various graphene devices were used in this study, including graphene on different substrates, such as glass and silicon, as well as low and high mobility devices.http://dx.doi.org/10.1155/2014/737296 |
| spellingShingle | Michael Hilke Mathieu Massicotte Eric Whiteway Victor Yu Weak Localization in Graphene: Theory, Simulations, and Experiments The Scientific World Journal |
| title | Weak Localization in Graphene: Theory, Simulations, and Experiments |
| title_full | Weak Localization in Graphene: Theory, Simulations, and Experiments |
| title_fullStr | Weak Localization in Graphene: Theory, Simulations, and Experiments |
| title_full_unstemmed | Weak Localization in Graphene: Theory, Simulations, and Experiments |
| title_short | Weak Localization in Graphene: Theory, Simulations, and Experiments |
| title_sort | weak localization in graphene theory simulations and experiments |
| url | http://dx.doi.org/10.1155/2014/737296 |
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