TaAs2 nanowires show large magnetoresistance, a field-driven metal-insulator transition, and an Aharonov-Bohm oscillation pattern attributed to weak-topological-insulator surface Dirac cones, but the proposed two-cone mechanism cannot explain the observed period.
Quantum interference and Aharonov–Bohm oscillations in topological insulators
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Intertwined topological phases in TaAs2 nanowires with giant magnetoresistance and quantum coherent surface transport
TaAs2 nanowires show large magnetoresistance, a field-driven metal-insulator transition, and an Aharonov-Bohm oscillation pattern attributed to weak-topological-insulator surface Dirac cones, but the proposed two-cone mechanism cannot explain the observed period.