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The chiral anomaly in Weyl semimetals is responsible for various anomalous transport phenomena. In tunnel junctions between Weyl semimetals with staggered Weyl node projections, the chiral anomaly leads to a magnetic-field activated magnetotransport. In this talk, I discuss the effect of interface disorder on the magnetotransport across such a tunnel junction employing a semiclassical Boltzmann approach. Our results show that, compared to conventional transport channels, the topological connectivity of interface Fermi arcs ensures that anomalous magnetotransport exhibits stronger robustness against disorder. Additionally, interface disorder enhances magnetic breakdown, a quantum tunneling effect, between the Fermi arcs.

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Haoyang Tian, FU Berlin
Seminar Room 0.03, ETP
Contact: Urban Seifert