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  Giant Magnetodrag in Graphene at Charge Neutrality

Titov, M., Gorbachev, R. V., Narozhny, B. N., Tudorovskiy, T., Schutt, M., Ostrovsky, P. M., et al. (2013). Giant Magnetodrag in Graphene at Charge Neutrality. Physical Review Letters, 111(16): 166601.

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Item Permalink: https://hdl.handle.net/21.11116/0000-000E-C787-9 Version Permalink: https://hdl.handle.net/21.11116/0000-000E-C788-8
Genre: Journal Article

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 Creators:
Titov, M., Author
Gorbachev, R. V., Author
Narozhny, B. N., Author
Tudorovskiy, T., Author
Schutt, M., Author
Ostrovsky, P. M.1, Author
Gornyi, I. V., Author
Mirlin, A. D., Author
Katsnelson, M. I., Author
Novoselov, K. S., Author
Geim, A. K., Author
Ponomarenko, L. A., Author
Affiliations:
1Max Planck Society, ou_persistent13              

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 Abstract: We report experimental data and theoretical analysis of Coulomb drag between two closely positioned graphene monolayers in a weak magnetic field. Close enough to the neutrality point, the coexistence of electrons and holes in each layer leads to a dramatic increase of the drag resistivity. Away from charge neutrality, we observe nonzero Hall drag. The observed phenomena are explained by decoupling of electric and quasiparticle currents which are orthogonal at charge neutrality. The sign of magnetodrag depends on the energy relaxation rate and geometry of the sample.

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Language(s): eng - English
 Dates: 2013
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Internal
 Identifiers: eDoc: 672377
ISI: 000326119300013
 Degree: -

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Title: Physical Review Letters
Source Genre: Journal
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Publ. Info: -
Pages: - Volume / Issue: 111 (16) Sequence Number: 166601 Start / End Page: - Identifier: ISSN: 0031-9007