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Muñoz E, Soto-Garrido R. Analytic approach to magneto-strain tuning of electronic transport through a graphene nanobubble: perspectives for a strain sensor. J Phys Condens Matter. 2017;29(44):445302doi: 10.1088/1361-648X/aa89bc.
Muñoz, E., & Soto-Garrido, R. (2017). Analytic approach to magneto-strain tuning of electronic transport through a graphene nanobubble: perspectives for a strain sensor. Journal of physics. Condensed matter : an Institute of Physics journal, 29(44), 445302. https://doi.org/10.1088/1361-648X/aa89bc
Muñoz, Enrique, and Soto-Garrido, Rodrigo. "Analytic approach to magneto-strain tuning of electronic transport through a graphene nanobubble: perspectives for a strain sensor." Journal of physics. Condensed matter : an Institute of Physics journal vol. 29,44 (2017): 445302. doi: https://doi.org/10.1088/1361-648X/aa89bc
Muñoz E, Soto-Garrido R. Analytic approach to magneto-strain tuning of electronic transport through a graphene nanobubble: perspectives for a strain sensor. J Phys Condens Matter. 2017 Nov 08;29(44):445302. doi: 10.1088/1361-648X/aa89bc. PMID: 28862146.
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J Phys Condens Matter. 2017 Nov 08;29(44):445302. doi: 10.1088/1361-648X/aa89bc.

Analytic approach to magneto-strain tuning of electronic transport through a graphene nanobubble: perspectives for a strain sensor.

Journal of physics. Condensed matter : an Institute of Physics journal

Enrique Muñoz, Rodrigo Soto-Garrido

Affiliations

  1. Facultad de Física, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Santiago, Chile.

PMID: 28862146 DOI: 10.1088/1361-648X/aa89bc

Abstract

We consider the scattering of Dirac particles in graphene due to the superposition of an external magnetic field and mechanical strain. As a model for a graphene nanobubble, we find exact analytical solutions for single-particle states inside and outside a circular region submitted to the fields. Finally, we obtain analytical expressions for the scattering cross-section, as well as for the Landauer current through the circular region. Our results provide a fully-analytical treatment for electronic transport through a graphene nanobubble, showing that a combination of a physical magnetic field and strain leads to valley polarization and filtering of the electronic current. Moreover, our analytical model provides an explicit metrology principle to measure strain by performing conductance experiments under a controlled magnetic field imposed over the sample.

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