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Thermal smearing and screening in a strong magnetic field for Dirac materials in comparison with the two dimensional electron liquid

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Abstract

We compute and compare the effects due to a uniform perpendicular magnetic field as well as temperature on the static polarization functions for monolayer graphene (MLG), associated with the Dirac point, with that for the two-dimensional electron liquid (2DEL) with the use of comprehensive numerical calculations. The relevance of our study to the Friedel oscillations for the screening of the potential for a dilute distribution of impurities is reported too. Our results show substantial differences due to screening for the 2DEL and MLG which have not been given adequate attention previously.

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Authors and Affiliations

  1. Department of Physics, Hunter College of City University of New York, 695 Park Avenue, 10065, New York, USA

    Godfrey Gumbs & Dipendra Dahal

  2. Donostia International Physics Center, P. Manuel de Lardizabal 4, 20018, San Sebastian, Spain

    Godfrey Gumbs & M. Lawrence Glasser

  3. Department of Physics & Engineering Physics, Fordham University, 10458, Bronx, USA

    Antonios Balassis

  4. Department of Physics, Clarkson University, Potsdam, 13699-5820, New York, USA

    M. Lawrence Glasser

Authors
  1. Godfrey Gumbs
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  2. Antonios Balassis
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  3. Dipendra Dahal
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  4. M. Lawrence Glasser
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Correspondence to Antonios Balassis.

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Gumbs, G., Balassis, A., Dahal, D. et al. Thermal smearing and screening in a strong magnetic field for Dirac materials in comparison with the two dimensional electron liquid. Eur. Phys. J. B 89, 234 (2016). https://doi.org/10.1140/epjb/e2016-70452-4

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  • DOI: https://doi.org/10.1140/epjb/e2016-70452-4

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