https://doi.org/10.1140/epjb/s10051-022-00389-8
Regular Article - Solid State and Materials
Transport signatures of anisotropic tilted Dirac cones in 8-Pmmn borophene
Department of Physics, Kohat University of Science and Technology, 26000, Kohat, Khyber Pakhtunkhwa, Pakistan
Received:
4
April
2022
Accepted:
25
July
2022
Published online:
6
August
2022
We present a theoretical study of electronic transport in a two-dimensional 8-Pmmn monolayer borophene crystal illuminated by off-resonant electromagnetic radiation within the linear response theory. We find asymmetry in the intrinsic anomalous Hall conductivity of the system, hallmark of anisotropic tilted structure of the Dirac cones in borophene. The width of maximum in the Hall conductivity is of the order of the bandgap in the energy spectrum induced by the radiation. Interestingly, thermal and Peltier conductivities also exhibit pronounced asymmetry in addition to the Hall conductivity of the system. It is shown that such asymmetry in the conductivity originates from the anisotropic tilt in the Dirac cone of borophene. We also find that 8-Pmmn borophene makes transition from type-I to type-II Dirac fermion system in the limit of large tilt parameter.
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Copyright comment Springer Nature or its licensor holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2022. Springer Nature or its licensor holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.. Springer Nature or its licensor holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
