Resonant tunnelling between the chiral Landau states of twisted graphene lattices
A class of multilayered functional materials has recently emerged in which the component atomic layers are held together by weak van der Waals forces that preserve the structural integrity and physical properties of each layer. An exemplar of such a structure is a transistor device in which relativi...
| Main Authors: | , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Publishing Group
2015
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| Online Access: | https://eprints.nottingham.ac.uk/35051/ |
| _version_ | 1848794991858548736 |
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| author | Greenaway, M.T. Vdovin, Evgeny E. Mishchenko, A. Makarovsky, Oleg Patanè, Amalia Wallbank, J.R. Cao, Y. Kretinin, A.V. Zhu, M.J. Morozov, S.V. Fal’ko, V.I. Novoselov, K.S. Geim, A.K. Fromhold, T.M. Eaves, Laurence |
| author_facet | Greenaway, M.T. Vdovin, Evgeny E. Mishchenko, A. Makarovsky, Oleg Patanè, Amalia Wallbank, J.R. Cao, Y. Kretinin, A.V. Zhu, M.J. Morozov, S.V. Fal’ko, V.I. Novoselov, K.S. Geim, A.K. Fromhold, T.M. Eaves, Laurence |
| author_sort | Greenaway, M.T. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | A class of multilayered functional materials has recently emerged in which the component atomic layers are held together by weak van der Waals forces that preserve the structural integrity and physical properties of each layer. An exemplar of such a structure is a transistor device in which relativistic Dirac Fermions can resonantly tunnel through a boron nitride barrier, a few atomic layers thick, sandwiched between two graphene electrodes. An applied magnetic field quantises graphene's gapless conduction and valence band states into discrete Landau levels, allowing us to resolve individual inter-Landau level transitions and thereby demonstrate that the energy, momentum and chiral properties of the electrons are conserved in the tunnelling process. We also demonstrate that the change in the semiclassical cyclotron trajectories, following an inter-layer tunnelling event, is analogous to the case of intra-layer Klein tunnelling. |
| first_indexed | 2025-11-14T19:24:59Z |
| format | Article |
| id | nottingham-35051 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T19:24:59Z |
| publishDate | 2015 |
| publisher | Nature Publishing Group |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-350512020-05-08T10:15:47Z https://eprints.nottingham.ac.uk/35051/ Resonant tunnelling between the chiral Landau states of twisted graphene lattices Greenaway, M.T. Vdovin, Evgeny E. Mishchenko, A. Makarovsky, Oleg Patanè, Amalia Wallbank, J.R. Cao, Y. Kretinin, A.V. Zhu, M.J. Morozov, S.V. Fal’ko, V.I. Novoselov, K.S. Geim, A.K. Fromhold, T.M. Eaves, Laurence A class of multilayered functional materials has recently emerged in which the component atomic layers are held together by weak van der Waals forces that preserve the structural integrity and physical properties of each layer. An exemplar of such a structure is a transistor device in which relativistic Dirac Fermions can resonantly tunnel through a boron nitride barrier, a few atomic layers thick, sandwiched between two graphene electrodes. An applied magnetic field quantises graphene's gapless conduction and valence band states into discrete Landau levels, allowing us to resolve individual inter-Landau level transitions and thereby demonstrate that the energy, momentum and chiral properties of the electrons are conserved in the tunnelling process. We also demonstrate that the change in the semiclassical cyclotron trajectories, following an inter-layer tunnelling event, is analogous to the case of intra-layer Klein tunnelling. Nature Publishing Group 2015-10-19 Article PeerReviewed application/pdf en https://eprints.nottingham.ac.uk/35051/1/chiral_tunnelling_for_arxiv_Nottingham_rep.pdf Greenaway, M.T., Vdovin, Evgeny E., Mishchenko, A., Makarovsky, Oleg, Patanè, Amalia, Wallbank, J.R., Cao, Y., Kretinin, A.V., Zhu, M.J., Morozov, S.V., Fal’ko, V.I., Novoselov, K.S., Geim, A.K., Fromhold, T.M. and Eaves, Laurence (2015) Resonant tunnelling between the chiral Landau states of twisted graphene lattices. Nature Physics, 11 (12). pp. 1057-1062. ISSN 1745-2473 http://www.nature.com/nphys/journal/v11/n12/full/nphys3507.html doi:10.1038/nphys3507 doi:10.1038/nphys3507 |
| spellingShingle | Greenaway, M.T. Vdovin, Evgeny E. Mishchenko, A. Makarovsky, Oleg Patanè, Amalia Wallbank, J.R. Cao, Y. Kretinin, A.V. Zhu, M.J. Morozov, S.V. Fal’ko, V.I. Novoselov, K.S. Geim, A.K. Fromhold, T.M. Eaves, Laurence Resonant tunnelling between the chiral Landau states of twisted graphene lattices |
| title | Resonant tunnelling between the chiral Landau states of twisted graphene lattices |
| title_full | Resonant tunnelling between the chiral Landau states of twisted graphene lattices |
| title_fullStr | Resonant tunnelling between the chiral Landau states of twisted graphene lattices |
| title_full_unstemmed | Resonant tunnelling between the chiral Landau states of twisted graphene lattices |
| title_short | Resonant tunnelling between the chiral Landau states of twisted graphene lattices |
| title_sort | resonant tunnelling between the chiral landau states of twisted graphene lattices |
| url | https://eprints.nottingham.ac.uk/35051/ https://eprints.nottingham.ac.uk/35051/ https://eprints.nottingham.ac.uk/35051/ |