Magnetotransport of Weyl semimetals with tilted Dirac cones

Weyl semimetals (WSM) exhibit chiral anomaly in their magnetotransport due to broken conservation laws. Here, we analyze the magnetotransport of WSM in the presence of the time-reversal symmetry-breaking tilt parameter. The analytical expression for the magnetoconductivity is derived in the small ti...

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Veröffentlicht in:New journal of physics 2020-08, Vol.22 (8), p.83081
Hauptverfasser: Kundu, Anirban, Siu, Zhuo Bin, Yang, Hyunsoo, Jalil, Mansoor B A
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Sprache:eng
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Zusammenfassung:Weyl semimetals (WSM) exhibit chiral anomaly in their magnetotransport due to broken conservation laws. Here, we analyze the magnetotransport of WSM in the presence of the time-reversal symmetry-breaking tilt parameter. The analytical expression for the magnetoconductivity is derived in the small tilt limit using the semiclassical Boltzmann equation. We predict a planar Hall current which flows transverse to the electric field and in the plane containing magnetic and electric fields and scales linearly with the tilt parameter. A tilt-induced transverse conductivity is also present in the case where the electric and magnetic fields are parallel to each other, a scenario where the conventional Hall current completely vanishes.
ISSN:1367-2630
1367-2630
DOI:10.1088/1367-2630/aba98d