Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

TT: Fachverband Tiefe Temperaturen

TT 35: Topology: Poster

TT 35.6: Poster

Mittwoch, 19. März 2025, 15:00–18:00, P3

The Effect of Interface Disorder on the Tunnel Conductance Across Weyl Semimetal Interfaces — •Haoyang Tian¹, Vatsal Dwivedi², Adam Yanis Chaou², and Maxim Breitkreiz² — ¹Institut für Theoretische Physik, Universität zu Köln, Zülpicher Str. 77a, 50937 Köln, Germany — ²Dahlem Center for Complex Quantum Systems and Fachbereich Physik, Freie Universität Berlin, 14195 Berlin, Germany

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 work, we 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.

Keywords: Weyl semimetals; Semiclassical transport with disorder; Magnetic breakdown