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Dephasing in strongly anisotropic black phosphorus

N. Hemsworth, V. Tayari, F. Telesio, S. Xiang, S. Roddaro, M. Caporali, A. Ienco, M. Serrano-Ruiz, M. Peruzzini, G. Gervais, T. Szkopek, and S. Heun
Phys. Rev. B 94, 245404 – Published 2 December 2016
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Abstract

Weak localization was observed in a black phosphorus field-effect transistor 65 nm thick. The weak localization behavior was found to be in excellent agreement with the Hikami-Larkin-Nagaoka model for fields up to 1 T, from which characteristic scattering lengths could be inferred. The temperature dependence of the phase coherence length Lφ was investigated, and above 1 K, it was found to decrease weaker than the LφT1/2 dependence characteristic of electron-electron scattering in the presence of elastic scattering in two dimensions. Rather, the observed power law was found to be close to that observed previously in quasi-one-dimensional systems such as metallic nanowires and carbon nanotubes.

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  • Received 24 August 2016
  • Revised 5 November 2016

DOI:https://doi.org/10.1103/PhysRevB.94.245404

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

©2016 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

N. Hemsworth1, V. Tayari1, F. Telesio2, S. Xiang2, S. Roddaro2, M. Caporali3, A. Ienco3, M. Serrano-Ruiz3, M. Peruzzini3, G. Gervais4,*, T. Szkopek1, and S. Heun2

  • 1Department of Electrical and Computer Engineering, McGill University, Montréal, Québec, H3A 2A7, Canada
  • 2NEST, Istituto Nanoscienze–CNR and Scuola Normale Superiore, I-56127 Pisa, Italy
  • 3Istituto Chimica dei Composti OrganoMetallici–CNR, I-50019 Sesto Fiorentino, Italy
  • 4Physics Department, McGill University, Montréal, Québec, H3A 2T8, Canada

  • *gervais@physics.mcgill.ca

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Issue

Vol. 94, Iss. 24 — 15 December 2016

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