Extended Data Fig. 8: Enhanced nonlocal transport in both the CNP and second insulating gaps.
From: Dual quantum spin Hall insulator by density-tuned correlations in TaIrTe4
a, An optical image of device D1. Scale bar: 10 μm. b, The local (VL) and nonlocal (VNL) voltages measured with Ixx = 100 nA.