Planar Hall effect in type-II Weyl semimetal WTe2

Abstract

Adler-Bell-Jackiw chiral anomaly is a representative feature arising from the topological nature in topological semimetal. We report the first experimental observation of giant planar Hall effect in type-II Weyl semimetal WTe2. Our comprehensive analyes of the experimental data demonstrate that the detected planar Hall effect is originated from the chiral anomaly of Weyl fermions. Unlike the somewhat elusive negative magnetoresistance, the planar Hall effect is robust and easy to be detected in type-II Weyl semimetal. This work reveals that the planar Hall effect is an effective transport probe to determine the topological nature of topological semimetals, especially in type-II Weyl semimetals.

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• Giant Planar Hall Effect in the Dirac Semimetal ZrTe5
• Planar Hall effect in type II Dirac semimetal VAl${}_3$
• Exceptionally large anomalous Hall effect due to anticrossing of spin-split bands in the antiferromagnetic half-Heusler compound TbPtBi
• Magneto-transport phenomena of type-I multi-Weyl semimetals in co-planar setups
• Planar Thermal Hall Effect in Weyl Semimetals
• Dynamical density response and optical conductivity in topological metals
• Oscillating planar Hall response from the surface electrons in bulk crystal Sn doped Bi1.1Sb0.9Te2S
• Growth and Strain Engineering of Trigonal Te for Topological Quantum Phases in Non-Symmorphic Chiral Crystals
• 125Te spin-lattice relaxation in a candidate to Weyl semimetals WTe2