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Weak localisation magnetoresistance and valley symmetry in graphene.

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Weak localisation magnetoresistance and valley symmetry in graphene. / McCann, Edward; Kechedzhi, K.; Fal’ko, Vladimir I. et al.
In: Physical review letters, Vol. 97, No. 14, 06.10.2006, p. 146805.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

McCann, E, Kechedzhi, K, Fal’ko, VI, Suzuura, H, Ando, T & Altshuler, BL 2006, 'Weak localisation magnetoresistance and valley symmetry in graphene.', Physical review letters, vol. 97, no. 14, pp. 146805. https://doi.org/10.1103/PhysRevLett.97.146805

APA

McCann, E., Kechedzhi, K., Fal’ko, V. I., Suzuura, H., Ando, T., & Altshuler, B. L. (2006). Weak localisation magnetoresistance and valley symmetry in graphene. Physical review letters, 97(14), 146805. https://doi.org/10.1103/PhysRevLett.97.146805

Vancouver

McCann E, Kechedzhi K, Fal’ko VI, Suzuura H, Ando T, Altshuler BL. Weak localisation magnetoresistance and valley symmetry in graphene. Physical review letters. 2006 Oct 6;97(14):146805. doi: 10.1103/PhysRevLett.97.146805

Author

McCann, Edward ; Kechedzhi, K. ; Fal’ko, Vladimir I. et al. / Weak localisation magnetoresistance and valley symmetry in graphene. In: Physical review letters. 2006 ; Vol. 97, No. 14. pp. 146805.

Bibtex

@article{cd5a241d8cba4842b8c58a89061b1da1,
title = "Weak localisation magnetoresistance and valley symmetry in graphene.",
abstract = "Due to the chiral nature of electrons in a monolayer of graphite (graphene) one can expect weak antilocalisation and a positive weak-field magnetoresistance in it. However, trigonal warping (which breaks p to −p symmetry of the Fermi line in each valley) suppresses antilocalisation, while inter-valley scattering due to atomically sharp scatterers in a realistic graphene sheet or by edges in a narrow wire tends to restore conventional negative magnetoresistance. We show this by evaluating the dependence of the magnetoresistance of graphene on relaxation rates associated with various possible ways of breaking a {\textquoteright}hidden{\textquoteright} valley symmetry of the system.",
author = "Edward McCann and K. Kechedzhi and Fal{\textquoteright}ko, {Vladimir I.} and H. Suzuura and T. Ando and Altshuler, {B. L.}",
note = "{\textcopyright}2006 The American Physical Society",
year = "2006",
month = oct,
day = "6",
doi = "10.1103/PhysRevLett.97.146805",
language = "English",
volume = "97",
pages = "146805",
journal = "Physical review letters",
issn = "1079-7114",
publisher = "American Physical Society",
number = "14",

}

RIS

TY - JOUR

T1 - Weak localisation magnetoresistance and valley symmetry in graphene.

AU - McCann, Edward

AU - Kechedzhi, K.

AU - Fal’ko, Vladimir I.

AU - Suzuura, H.

AU - Ando, T.

AU - Altshuler, B. L.

N1 - ©2006 The American Physical Society

PY - 2006/10/6

Y1 - 2006/10/6

N2 - Due to the chiral nature of electrons in a monolayer of graphite (graphene) one can expect weak antilocalisation and a positive weak-field magnetoresistance in it. However, trigonal warping (which breaks p to −p symmetry of the Fermi line in each valley) suppresses antilocalisation, while inter-valley scattering due to atomically sharp scatterers in a realistic graphene sheet or by edges in a narrow wire tends to restore conventional negative magnetoresistance. We show this by evaluating the dependence of the magnetoresistance of graphene on relaxation rates associated with various possible ways of breaking a ’hidden’ valley symmetry of the system.

AB - Due to the chiral nature of electrons in a monolayer of graphite (graphene) one can expect weak antilocalisation and a positive weak-field magnetoresistance in it. However, trigonal warping (which breaks p to −p symmetry of the Fermi line in each valley) suppresses antilocalisation, while inter-valley scattering due to atomically sharp scatterers in a realistic graphene sheet or by edges in a narrow wire tends to restore conventional negative magnetoresistance. We show this by evaluating the dependence of the magnetoresistance of graphene on relaxation rates associated with various possible ways of breaking a ’hidden’ valley symmetry of the system.

U2 - 10.1103/PhysRevLett.97.146805

DO - 10.1103/PhysRevLett.97.146805

M3 - Journal article

VL - 97

SP - 146805

JO - Physical review letters

JF - Physical review letters

SN - 1079-7114

IS - 14

ER -